lol, you are a glass half empty kinda guy...i have bought probably over 100 computer hardware items, about 20 car parts and sold over 400 items on ebay and all but 2 purchases I have made were legit.
you just gotta check that persons feedback and see if they are reputable....obviously the guys on ebay with 2000+ feedback do something right and sell at least a decent product.
I mean I have n eibach pro kit for my car that lists for what, 210-240 and I got em for 140 shipped off of ebay BRAND NEW....definately no regrets there.
Same with my exhaust, dont know where else I am going to find a 2.25in axle back exhaust for 140 shipped brand new, and I know it is great quality cause it is sitting right next to me right now....as in not installed.
I dont kow it is personal preference, i know alot of people who refuse to use ebay cause they dont trust it, i just tell em each person has certain things they wont do....meanwhile I keep spending half of what they do on items.
=)