I agree 100%. When I was house hunting, the number one priority (besides living in a good school district) was to buy a house which would be easy to turn around and sell if necessary.

If 95% of the houses in your town have 3+ bedrooms and 2+ bathrooms, you are arguably making a mistake if you save 5 or even 10 percent by buying a 2 bedroom house. Even if that's all you need.

So the upshot is that people who want to be rational often need to factor in other peoples' preferences, whether rational or not. As Ambrose Bierce pointed out, fashion is the dictator whom the wise both ridicule and obey.