I only use ebay to contact the seller about buying outside of ebay....Yes, I'm breaking the rules. I used to not do that, abiding by the terms of ebay, but then I realized that many sellers are using ebay for free advertising by starting their auctions with high prices with the intent of selling off of ebay. 9 times out of 10, if I inquire on an item, the seller will tell me it's for sale locally too, which is secret handshake speak for contact me about negotiating a deal outside of Ebay.
Ebay is a shell of its former self, and if it weren't for the momentum it's achieved from years past, it would be defunct.