eBay still has its place. You will probably sell decent gear and parts for more money on eBay than you would otherwise. Whether it's worth it to you after dealing with various bidders, the fees and shipping is another matter. As far as buying goes, I can almost always find a better price on new gear and equipment by using a simple Google search than I find on eBay stores. It is harder to return items from eBay sellers, as well, so I don't usually buy new stuff on eBay unless it's something that I am reasonably certain that I won't have to return or exchange. However, if I have a bunch of money in my PayPal account from eBay sales, it is very simple to buy stuff on eBay. I generally use "buy it now" if the price is reasonable rather than going through the whole bidding rigamarole.