I'd rate eBay far far ahead of anything else.
I put a Wanted up for a WHITE Amiga 600 on Amibench. I got a reply stating that a white 600 is available. The guy must have been blind because I received it and it was probably the most yellow Amiga 600 I have ever seen.
On eBay at least you can choose to look at what you are buying and leave negative feedback.
