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

ON30 Bachmann Spectrum Jingle Bell Express Train Set 25012 North pole
ON30 Bachmann Spectrum Jingle Bell Express Train Set 25012 North pole
$279.99
Time Remaining: 45m
Buy It Now for only: $279.99
Sunset on the Rio Grande Southern 2 Volume Set
Sunset on the Rio Grande Southern 2 Volume Set
$125.00
Time Remaining: 11h
HO Gauge Bachmann White Pass  Yukon Set
HO Gauge Bachmann White Pass Yukon Set
$289.99
Time Remaining: 23h 10m
Buy It Now for only: $289.99
Northwest Short Line 28046 On30 Replacement Gear Set for Bachmann Railbus
Northwest Short Line 28046 On30 Replacement Gear Set for Bachmann Railbus
$34.95
Time Remaining: 1d 7h 2m
Buy It Now for only: $34.95
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: 2d 2h 40m
Buy It Now for only: $89.95
Logging Camp Cook Bunk House Set Thomas Yorke Scale Model Masterpieces On3 NEW
Logging Camp Cook Bunk House Set Thomas Yorke Scale Model Masterpieces On3 NEW
$149.95
Time Remaining: 2d 4h 18m
Buy It Now for only: $149.95
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM011
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM011
$142.45
Time Remaining: 3d 5h 44m
Buy It Now for only: $142.45
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM022
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM022
$149.95
Time Remaining: 4d 1h 44m
Buy It Now for only: $149.95
Hawthorne Village Spirit of America Train set
Hawthorne Village Spirit of America Train set
$250.00
Time Remaining: 4d 2h 6m
Buy It Now for only: $250.00
Bachmann Santas eXpress set in on30 beat the Christmas rush
Bachmann Santas eXpress set in on30 beat the Christmas rush
$79.95
Time Remaining: 4d 20h 52m
BACHMANN EZ TRACK Set 12 Curves 5 Straights Pwr Pack Controller NEW
BACHMANN EZ TRACK Set 12 Curves 5 Straights Pwr Pack Controller NEW
$39.98
Time Remaining: 5d 24m
Buy It Now for only: $39.98
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM033
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM033
$149.95
Time Remaining: 5d 3h 21m
Buy It Now for only: $149.95
Bachmann Hawthorne Village MCDONALDS Electric Train Set
Bachmann Hawthorne Village MCDONALDS Electric Train Set
$250.00
Time Remaining: 5d 11h 51m
Buy It Now for only: $350.00
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM044
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM044
$149.95
Time Remaining: 6d 1h 44m
Buy It Now for only: $149.95
Narrow Gauge Cumbres  Toltec 6 CD PHOTO SET 1300 JPEGS
Narrow Gauge Cumbres Toltec 6 CD PHOTO SET 1300 JPEGS
$29.99
Time Remaining: 8d 2h 52m
Buy It Now for only: $29.99
HO SCALE HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET
HO SCALE HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET
$130.00
Time Remaining: 9d 2h 50m
Buy It Now for only: $130.00
ENHANCED Spectrum On30 CS set
ENHANCED Spectrum On30 CS set
$449.00
Time Remaining: 13d 2h 7m
Buy It Now for only: $449.00
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set O 148
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set O 148
$142.45
Time Remaining: 13d 5h 20m
Buy It Now for only: $142.45
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: 15d 19h 59m
Buy It Now for only: $425.95
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET LARGE SET
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET LARGE SET
$500.00
Time Remaining: 15d 22h 54m
Buy It Now for only: $500.00
Busch 12012 H0f Field Railway Field Railway Start Set Timber Transport
Busch 12012 H0f Field Railway Field Railway Start Set Timber Transport
$202.65
Time Remaining: 17d 1h 38m
Buy It Now for only: $202.65

Other On30 Scale train items recently purchased through this site:

ENHANCED Spectrum On30 CS set
Sunset on the Rio Grande Southern 2 Volume Set
Hawthorne Village Train Set Spirit of America
BACHMANN EZ TRACK Set 12 Curves 5 Straights Pwr Pack Controller NEW
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM033
Hawthorne Village Spirit of America Train set
bachmann on30 Village Street Car Set With Extra Track
Bachmann Hawthorne Village MCDONALDS Electric Train Set
TRAIN SET 4 HAWTHORNE VILLAGE SPIRIT OF AMERICA SET OF 4 NEW COLLECTIBLE
HO SCALE HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET
Narrow Gauge Cumbres Toltec 6 CD PHOTO SET 1300 JPEGS
ON30 Bachmann Spectrum Jingle Bell Express Train Set 25012 North pole
ENHANCED Bachmann On30 Thomas Kinkade Christmas Express set
BACHMANN Village Street Car Train Set 25017 On 30 United Trolley
On30 Scale Ultimate Railroad Prototype Picture CD Collection Set 25000+ images
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
BACHMANN HAWTHORNE VILLAGE ON30 BUDWEISER STEAM SET NEW LOT 15321
Bachmann Hawthorne Village SPIRIT OF AMERICA 13 Train Set + Track
Bachmann Santas eXpress set in on30 beat the Christmas rush
HO Gauge Bachmann White Pass Yukon Set
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET LARGE SET
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET 13 PC COMPLETE LARGE SET
Northwest Short Line 28046 On30 Replacement Gear Set for Bachmann Railbus
Busch 12012 H0f Field Railway Field Railway Start Set Timber Transport
Scale Model Masterpieces Yorke Logging Camp Cook Bunk House Set SMM044