If it's been good enough for the last 5,000 years, why stop now??
bargaining is the underlying factor the laws of economics and natural market forces... demand goes up, price goes up... if people don't want to pay that much they won't...
granted, people should read the thread, if they don't want to pay the price, don't pay it... ask the seller if he is willing to go lower, but if he says no, leave it at that...