I currently have around 1,600 slot cards listed on the Delcampe auction site and I'm adding new cards as time permits. I currently have all of my Montana, foreign and rarer doubles listed along with an assortment of more common slot cards. Most cards are marked down from the slot card guide values. I actually have over 2,100 auctions running with all of my remaining chips, tokens, room keys, postcards and other misc. things listed.

Here's a link to my Delcampe store front listing everything currently online
http://www.delcampe.net/store/rbakerpc

Delcampe doesn't have specific casino memorabilia categories yet but I'm working with them to see if they'll add new categories. In the mean time, slot cards are listed in their Other Collections section under Modern Collectible Cards in a Casino Card category. Here's a link to my specific slot card listings.
http://www.delcampe.net/page/list/cat,20485,id_member,00554914,language,E.html

Room keys and gift cards are in their own categories under Modern Collectible Cards and all the misc cards are in the Other section.

Chips and Tokens are under Coins & Banknotes while everything else should be pretty self explanatory.

The good thing is that I can still sell or trade anything listed on my own website ( www.slotcardtrader.com ) that currently shows over 8,000 different slot cards plus all the other items currently on Delcampe. One nice feature on Delcampe is that you can put together a group of my cards and make an offer through their system.

If you collect any player# prefixes, just ask if there's anything specific you're looking for. Whatever Harrah's player# prefixes I have for each card are all listed on the page showing the Harrah's cards. I currently have over 60,000 doubles right now so there's lots of cards to look through.

If you see anything you have questions on just let me know.