When it comes to buying anything over the internet, I've learned that "Caveat Emptor!" is the only hard and fast rule you must adher to. The Law of Supply and Demand will usually set the fair market price for an item. If you don't like that price, or you can purchase new for less, then you're obviously going to do that unless you have more money than sense. But when it comes right down to it, a seller has the right to set any price he likes for his property; we as the buying public are under no obligation to meet that price, unless it is for a "must have" or rare item that we're willing to overpay for it, simply because we can't find the same item locally for love 'nor money.
We've all seen the same overpriced items in the EE, again & again & again...and there they'll stay...only thing we should make sure is that they aren't being prematurely bumped, other than that, why bother complaining about just how ridiculous their asking price is? Send the seller a PM with an offer, if he/she accepts' all well and good, otherwise wait for the next one to come along!