I, for one, could not possibly care less if someone wants to pay more than MSRP for used gear; doesn't affect me in the least. You have a few options when posting an ad: 1) price it low so it sells fast; 2) price it above market and hope some sucker bites; 3) price it above market so you have room to negotiate down to what you really want to get out of it. I think most people here go for the last option, but I've certainly seen some of option 2 as well. Usually those ads sit for a while because the majority of folks here who are looking to buy actually know what the item is worth.
Definitely not bitching about it, just pointing and laughing. Like jim said, to each his own.