When I see an ad with descriptions like "top quality" & "high dollar items", I know that the estate sale operator has an inflated idea about the value of used modern tools. I'll bet they are all overpriced, and there won't be any reasonable prices until late Sunday afternoon when they are trying to unload everything.
I'm sorry but I have never had much luck at estate sales that were professionally run. Much better luck finding good deals at flea markets or small homeowner run tag sales.
I hope in this case that I'm wrong. There looks to be some nice stuff there.