I have to say for buying I have found some good stuff on eBay, but you have to reeeallllyyy look and know what your are buying. I have somewhat figured out how to search with out getting 5,000 results for Chinese garbage that "fits your 1967 Dodge Coronet".
As for selling it can be a crap shoot. I have an eBay store through my business, but we use it to sell remnant or overstock material. Looked at it for selling new products (hand tools, power tools, etc.), but the eBay fees and competing against asshats in there basement with no overhead, no stock and just drop shipping, not abiding by manufacturers minimum sales price, and all for 5-10% profit we decided it made no sense for us.
As well, eBay will always err on the side of the buyer. I sold a ton of auto audio equipment a few years ago, really good stuff, was into it for years, and every transaction went well, except one. I sold a high end set of component speakers and listed all over the place "2 ohm" as they must be wired correctly to work properly. I got contacting about a week after the sale saying they were junk and crackling and popping. I thought BS, and I hope this idiot hasn't blown these speakers. I put right in my add, no returns, as it's electronics I didn't want some idiot who didn't know what they were doing to blow an amp or speaker by hooking it up wrong...or they have a blown amp/speaker, order mine and then try to return their POS. I was nice to the guy and tried to help walk him through how to hook everything up to his stereo and he kept saying they didn't work and he turned into a real dick accusing me of selling him blown speakers. I knew they worked when I sent them out and was really hoping he didn't F them up. So after bitching with eBay several times, because I only selected the no return option and didn't "type" it into the actual product description (the BS clause they stated) I had to refund him his money, his shipping, and I had to cover his return shipping (major bull **** by the way) or they would close my account and take the money anyway, as they also own Paypal and had the funds locked so I couldn't withdraw them. That's when I said I am done. I got the speakers back and immediately wired them up together at 4 ohms to my home stereo (car stereos were all gone at this point) and what do you know, they worked fine. Stupid SOB. Either he had a bad amp, or was wiring them to a 4 ohm amp. I still have that set of speakers in the closet. I'll use them some day, or they will sit there for all I care. I won't sell anything like that again on eBay.
