non they are thinking what alot of sellers are thinking.
All it takes is one buyer to come and buy it…Also have you checked to see if they pulled cash out of it or refinanced? They may have a larger debt load then you assume.
Politely tell them thanks but no thanks and then check in with them a few weeks later. Alternately have your realtor send the listing agent comps and ask them what justification they have to get such a premium. The market will dictate if they are being outlandish.