Not everyone in this great hobby is like that ebay dealer.
You will find the most trustworthy & respectable Chippers right here.
Greg's Chipboard is the place to come with questions about anything casino related.
If you have a question about the rarity of an item you see on ebay- just ask one of the Many qualified people that check in on this board. You will know what you are really bidding on.
Like in every hobby - there are con artists. They are everywhere.
But, you will find that most people who share this hobby, are very nice and helpful. Don't be afraid to ask questions!
Good Luck,
Pete