I've been with eBay since 2004 and can say that while I trust eBay to provide a good level of service and customer support, it has become a minefield of counterfeit replica and blatantly inferior copycat Chinese and Korean products.
I agree with some previous statements - this website is an expensive automated crap with poor customer service. Ebay/paypal (apparently the same corporation) supports cons, I`ve lost lots of money both selling and buying. That is my personal experience after 5years of being active user.
What can't you buy on eBay! I use it all the time. I have to agree with another comment though, that they are so buyer-orientated nowadays compared to previously. One slight mishap, POW! - the seller is punished. The fact sellers can't leave negative feedback is a joke! Hardly child-friendly as you have to be 18 to register with credit cards/PayPal etc. Also, the eBay/PayPal partnership is a scam in disguise. Another way to literally double-charge people!