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'.

HO SCALE HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET
HO SCALE HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET
$130.00
Time Remaining: 1d 8h 1m
Buy It Now for only: $130.00
2 car set 1203 Scale Narrow Gauge Fall River Gondola flat car
2 car set 1203 Scale Narrow Gauge Fall River Gondola flat car
$350.00
Time Remaining: 1d 11h 48m
Buy It Now for only: $350.00
TRAIN SET 4 HAWTHORNE VILLAGE SPIRIT OF AMERICA SET OF 4 NEW COLLECTIBLE
TRAIN SET 4 HAWTHORNE VILLAGE SPIRIT OF AMERICA SET OF 4 NEW COLLECTIBLE
$100.00
Time Remaining: 3d 5h
Buy It Now for only: $100.00
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
$140.95
Time Remaining: 4d 8h 43m
Buy It Now for only: $140.95
BCH Minitrains GMEINDER 8 pc train set Factory new BLUE diesel HOn2 1 2
BCH Minitrains GMEINDER 8 pc train set Factory new BLUE diesel HOn2 1 2
$75.00
Time Remaining: 4d 16h 27m
Buy It Now for only: $75.00
BCH Minitrains 11 pc Plymouth Freight set HOn2 1 2
BCH Minitrains 11 pc Plymouth Freight set HOn2 1 2
$100.00
Time Remaining: 4d 16h 28m
Buy It Now for only: $100.00
BCH Minitrains GMEINDER 9 pc train set Factory new Silver diesel HOn2 1 2
BCH Minitrains GMEINDER 9 pc train set Factory new Silver diesel HOn2 1 2
$75.00
Time Remaining: 4d 16h 28m
Buy It Now for only: $75.00
Narrow Gauge Cumbres  Toltec 6 CD PHOTO SET 1300 JPEGS
Narrow Gauge Cumbres Toltec 6 CD PHOTO SET 1300 JPEGS
$29.99
Time Remaining: 5d 9h 27m
Buy It Now for only: $29.99
Bachmann ON30 29804 Dump Car woodside dump car green set of 3
Bachmann ON30 29804 Dump Car woodside dump car green set of 3
$46.98
Time Remaining: 5d 17h 13m
Hawthorne Village Bachmann Spirit Of America Railroad Train set
Hawthorne Village Bachmann Spirit Of America Railroad Train set
$125.00
Time Remaining: 8d 17h 5m
Buy It Now for only: $125.00
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: 9d 19h 14m
Buy It Now for only: $279.99
ENHANCED Spectrum On30 CS set
ENHANCED Spectrum On30 CS set
$449.00
Time Remaining: 10d 8h 42m
Buy It Now for only: $449.00
Bachmann ON30 Porter Locomotive with 4 Customized ON30 Gondola Cars 5 Pc Set
Bachmann ON30 Porter Locomotive with 4 Customized ON30 Gondola Cars 5 Pc Set
$149.95
Time Remaining: 11d 9h 16m
Buy It Now for only: $149.95
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: 13d 2h 34m
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: 13d 5h 29m
Buy It Now for only: $500.00
On30 Scale Ultimate Railroad Prototype Picture CD Collection Set 25000+ images
On30 Scale Ultimate Railroad Prototype Picture CD Collection Set 25000+ images
$99.99
Time Remaining: 20d 6h 30m
Buy It Now for only: $99.99
ENHANCED Bachmann On30 Thomas Kinkade Christmas Express set
ENHANCED Bachmann On30 Thomas Kinkade Christmas Express set
$349.00
Time Remaining: 23d 9h 52m
Buy It Now for only: $349.00
HO Gauge Bachmann White Pass  Yukon Set
HO Gauge Bachmann White Pass Yukon Set
$289.99
Time Remaining: 28d 5h 45m
Buy It Now for only: $289.99
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: 29d 9h 16m
Buy It Now for only: $89.95
BCH Minitrains GMEINDER 9 pc train set Factory new Silver diesel HOn2 1 2
BCH Minitrains GMEINDER 9 pc train set Factory new Silver diesel HOn2 1 2
$89.99
Time Remaining: 29d 9h 51m
Buy It Now for only: $89.99

Other On30 Scale train items recently purchased through this site:

BCH Minitrains GMEINDER 8 pc train set Factory new BLUE diesel HOn2 1 2
BCH Minitrains 11 pc Plymouth Freight set HOn2 1 2
BCH Minitrains GMEINDER 9 pc train set Factory new Silver diese
ENHANCED Spectrum On30 CS set
Logging Camp Cook Bunk House Set Thomas Yorke Scale Model Masterpieces On3 NEW
ENHANCED Bachmann On30 Thomas Kinkade Christmas Express set
On30 Scale Ultimate Railroad Prototype Picture CD Collection Set 25000+ images
Bachmann ON30 Porter Locomotive with 4 Customized ON30 Gondola Cars 5 Pc Set
Hawthorne Village Bachmann Spirit Of America Railroad Train set
Narrow Gauge Cumbres Toltec 6 CD PHOTO SET 1300 JPEGS
ON30 Bachmann Spectrum Jingle Bell Express Train Set 25012 North pole
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
TRAIN SET 4 HAWTHORNE VILLAGE SPIRIT OF AMERICA SET OF 4 NEW COLLECTIBLE
HO SCALE HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET 13 PC COMPLETE LARGE SET
2 car set 1203 Scale Narrow Gauge Fall River Gondola flat car
Bachmann ON30 29804 Dump Car woodside dump car green set of 3
BACHMANN HAWTHORNE VILLAGE SPIRIT OF AMERICA TRAIN SET LARGE SET
BCH Minitrains GMEINDER 9 pc train set Factory new Silver diesel HOn2 1 2
HO Gauge Bachmann White Pass Yukon Set