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

Idaho Hotel S Scale Building Kit by Bar Mills Scale Model Works NIB Sn3
Idaho Hotel S Scale Building Kit by Bar Mills Scale Model Works NIB Sn3
$107.50 (12 Bids)
Time Remaining: 3d 3h 43m
Seven 7 New in Box Building kits by FinestKind Models NIB S Scale Sn3
Seven 7 New in Box Building kits by FinestKind Models NIB S Scale Sn3
$305.00 (8 Bids)
Time Remaining: 4d 6h 44m
O SCALE On3 On30 BANTA MODEL WORKS 6145 Doc Holidays Apothecary
O SCALE On3 On30 BANTA MODEL WORKS 6145 Doc Holidays Apothecary
$94.00
Time Remaining: 8d 1h 6m
Buy It Now for only: $94.00
O On30 On2 On3 Scale BANTA MODELWORKS 6090 Chillerys Cafe model kit
O On30 On2 On3 Scale BANTA MODELWORKS 6090 Chillerys Cafe model kit
$120.00
Time Remaining: 12d 6h 28m
Buy It Now for only: $120.00
O SCALE On3 On30 On2 BANTA MODEL WORKS 6150 Chillerys Cafe FRONT ONLY
O SCALE On3 On30 On2 BANTA MODEL WORKS 6150 Chillerys Cafe FRONT ONLY
$54.00
Time Remaining: 13d 51m
Buy It Now for only: $54.00
F G scale BANTA MODEL WORKS 8122 Sonnys Used Cars
F G scale BANTA MODEL WORKS 8122 Sonnys Used Cars
$95.00
Time Remaining: 20d 11h 37m
Buy It Now for only: $95.00
S SCALE Sn3 WISEMAN MODEL SERVICES AHD 2 SPOOL LOGGING DONKEY ENGINE WINCH KIT
S SCALE Sn3 WISEMAN MODEL SERVICES AHD 2 SPOOL LOGGING DONKEY ENGINE WINCH KIT
$54.95
Time Remaining: 25d 21h 24m
Buy It Now for only: $54.95
Crck Hollow Hardware 4127 S scale Sn3 BANTA MODEL WORKS
Crck Hollow Hardware 4127 S scale Sn3 BANTA MODEL WORKS
$125.00
Time Remaining: 28d 8h 44m
Buy It Now for only: $125.00

Other On30 Scale train items recently purchased through this site:

Idaho Hotel S Scale Building Kit by Bar Mills Scale Model Works NIB Sn3
Seven 7 New in Box Building kits by FinestKind Models NIB S Scale Sn3
F G scale BANTA MODEL WORKS 8122 Sonnys Used Cars
S SCALE Sn3 WISEMAN MODEL SERVICES AHD 2 SPOOL LOGGING DONKEY ENGINE WINCH KIT
Crck Hollow Hardware 4127 S scale Sn3 BANTA MODEL WORKS
O SCALE On3 On30 BANTA MODEL WORKS 6145 Doc Holidays Apothecary
O SCALE On3 On30 On2 BANTA MODEL WORKS 6150 Chillerys Cafe FRONT ONLY
O On30 On2 On3 Scale BANTA MODELWORKS 6090 Chillerys Cafe model kit