“Pretty clever publicity stunt to sell a house”.
I don’t think it would not help sell the house.
I don’t think it would not help sell the house.
Assuming you meant you think it would NOT help sell the house, I would say, it would depend on who the potential buyers are, and what their take on UFOs is. If they are true believers seeking to prove ETs a 'reality', and had that kind of cash, they may well be interested. And if they're non-believers, believing the whole topic to be ridiculous, and they have a pretty cool sense of humor, they might be interested as well, at least for the silly stories associated with living there. Would make for some fun discussions at diner parties and such.