Dang. I've been looking for a 3" square butt 36 for a bunch of years now.
It's hard to say whether $500 is a good price or terrible price, as we don't know about the condition, but I'd say in this environment, it's a fairly average price for an S&W.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.