We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for 'train sets'.

BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET 13 PC COMPLETE LARGE SET
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET 13 PC COMPLETE LARGE SET
$425.95
Time Remaining: 1d 5h 18m
Buy It Now for only: $425.95
Peco ST 400 Setrack Starter Set OO 9 HOe
Peco ST 400 Setrack Starter Set OO 9 HOe
$103.23
Time Remaining: 2d 2h 13m
Buy It Now for only: $103.23
Summer Crossing Gate Hawthorne Village Bachmann HO Scale Accessory Set
Summer Crossing Gate Hawthorne Village Bachmann HO Scale Accessory Set
$29.99
Time Remaining: 2d 11h 39m
Buy It Now for only: $29.99
Hawthorne Village Bachmann HO Scale 90 Degree Crossing Accessory Set MIB
Hawthorne Village Bachmann HO Scale 90 Degree Crossing Accessory Set MIB
$29.99
Time Remaining: 2d 12h 12m
Buy It Now for only: $29.99
Hawthorne Village Set Of 3 Trains
Hawthorne Village Set Of 3 Trains
$83.00
Time Remaining: 3d 17h 57m
Buy It Now for only: $200.00
RS MICROLUX TOOLS SET SWORD SAWJIGSAW FILING MACHING  POWER SUPPLY ON BASE
RS MICROLUX TOOLS SET SWORD SAWJIGSAW FILING MACHING POWER SUPPLY ON BASE
$99.95
Time Remaining: 3d 19h 25m
KATO N gauge 787 system Around the Kyushu 7 Car Set 10 1540 model railroad train
KATO N gauge 787 system Around the Kyushu 7 Car Set 10 1540 model railroad train
$187.83
Time Remaining: 5d 7m
Buy It Now for only: $187.83
KATO N gauge 251 based super view Dancer appeared during coating 10 Car Set S
KATO N gauge 251 based super view Dancer appeared during coating 10 Car Set S
$275.08
Time Remaining: 5d 7m
Buy It Now for only: $275.08
Bachmann On30 Scale Train Set Analog Norman RockwellS American Christmas 25023
Bachmann On30 Scale Train Set Analog Norman RockwellS American Christmas 25023
$276.45
Time Remaining: 6d 14h 30m
Buy It Now for only: $276.45
Bachmann On30 Scale Train Set Analog White Pass  Yukon Passenger Set 25024
Bachmann On30 Scale Train Set Analog White Pass Yukon Passenger Set 25024
$331.88
Time Remaining: 6d 14h 30m
Buy It Now for only: $331.88
Bachmann On30 Scale Train Set Battery Operated Norman Rockwell Christmas 25100
Bachmann On30 Scale Train Set Battery Operated Norman Rockwell Christmas 25100
$190.54
Time Remaining: 6d 14h 30m
Buy It Now for only: $190.54
Bachmann On30 Scale Train Caboose Off Set Cupola Caboose White Pass Yukon 26564
Bachmann On30 Scale Train Caboose Off Set Cupola Caboose White Pass Yukon 26564
$54.19
Time Remaining: 6d 14h 32m
Buy It Now for only: $54.19
Bachmann On30 Scale Train Caboose Off Set Cupola Durango  Silverton 26565
Bachmann On30 Scale Train Caboose Off Set Cupola Durango Silverton 26565
$54.19
Time Remaining: 6d 14h 32m
Buy It Now for only: $54.19
Set of 3 Bachmann Spectrum 0n30 DRG  W Train Passenger Baggage Combine Cars
Set of 3 Bachmann Spectrum 0n30 DRG W Train Passenger Baggage Combine Cars
$149.99
Time Remaining: 7d 9h 40m
Buy It Now for only: $149.99
PreOrder KATO N gauge 701 based 1000 series Sendai color 2 Car Set 101554 mod
PreOrder KATO N gauge 701 based 1000 series Sendai color 2 Car Set 101554 mod
$102.04
Time Remaining: 15d 23h 9m
Buy It Now for only: $102.04
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
$89.95
Time Remaining: 19d 11h 59m
Buy It Now for only: $89.95
Hawthorne Village Spirit of America Train set New in Box with Flags
Hawthorne Village Spirit of America Train set New in Box with Flags
$99.00
Time Remaining: 20d 8h 37m
Buy It Now for only: $99.00
On30HO Side Dump Wagons Mining car Ore Erz Car x 3pcs 3 Stck set per box
On30HO Side Dump Wagons Mining car Ore Erz Car x 3pcs 3 Stck set per box
$69.00
Time Remaining: 20d 21h 5m
Buy It Now for only: $69.00
KATO N gauge 12 based express shaped passenger railway specification 6 Car Set 1
KATO N gauge 12 based express shaped passenger railway specification 6 Car Set 1
$125.84
Time Remaining: 20d 23h 37m
Buy It Now for only: $125.84
KATO N gauge old form passenger 4 Car Set tea 10 034 model railroad passenger ca
KATO N gauge old form passenger 4 Car Set tea 10 034 model railroad passenger ca
$69.67
Time Remaining: 20d 23h 37m
Buy It Now for only: $69.67
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET LARGE SET
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET LARGE SET
$450.00
Time Remaining: 22d 8h 13m
Buy It Now for only: $450.00

Other On30 Scale train items recently purchased through this site:

Hawthorne Village Set Of 3 Trains
Set of 3 Bachmann Spectrum 0n30 DRG W Train Passenger Baggage Combine Cars
RGS Sunrise Locomotive 15mm F 1203 Model Railroad Water Slide Decal Set SJD255
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Narrow Gauge Cumbres Toltec 6 CD PHOTO SET 1300 JPEGS
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET 13 PC COMPLETE LARGE SET
Bachmann On30 Scale Train Set Analog Norman RockwellS American Christmas 25023
RS MICROLUX TOOLS SET SWORD SAWJIGSAW FILING MACHING POWER SUPPLY ON BASE
Hawthorne Village Spirit of America Train set New in Box with Flags
10 1536 415 Series Joban Line New Color 4Car Additional Set
10 1488 165 Series Express Sado 7Cars Basic Set
10 1537 415 Series Joban Line New Color 4Car Set
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET LARGE SET
Kato N Gauge Series E235 Yamanote Line Add on B 3 Car Set 10 1470 Japan Im
10 1535 415 Series Joban Line New Color 7Car Basic Set
10 1571 Shinano Railway 115 Series 3Car Set
Bachmann On30 Scale Train Caboose Off Set Cupola Durango Silverton 26565
Kato 10 812 Series 24 Sleeper Express Yuzuru 6 Car Add on Set
Kato N Gauge Series M250 Super Rail Cargo Container Basic 4 Car Set 10 1418
Kato N Gauge ICE4 5 Both hematopoiesis Set 10 1513 Model Railroad Train
Series 225 0 Shin kaisoku 8 Car Set
Series 115 800 Yokosuka Color Basic 4 Car Set Model Train
DRGW Locomotives 15mm F 1203 Model Railroad Water Slide Decal Set SJD254
Kato N Gauge Series 221 Renewal car Yamatoji Kaisoku Basic 4 Car Set 10 14
Kato N Gauge 313 based 5300 Series Speed Two car hematopoiesis Set 10 1381 Mo