I've had all good experiences with Ebay too. It's amazing how much things from the 70's and 80's people have that are still in such great condition. I've purchased old games, books, vhs tapes, etc. that looked like they were in as great shape as they were orignally on the store shelves back then.
I get a kick out of scanning the feedback on ebay for negative comments. One time someone said, "Avoid this seller! The dvd he sent was not the one he had up for bid. Then the seller replied, "Then why didn't you email me about this?"
There was one time I ordered an old electronic game that didn't work but I emailed the seller and he said it worked when he tried it but I could send it back for a refund, so he made good on it. And a couple of times it took a LONG time to get the stuff I won, but I did get them and they were in great condition.