That's not really the point, though. Being in the market for a new house I can say that I really have to fight certain biases to look past a home that has hide

That's not really the point, though. Being in the market for a new house I can say that I really have to fight certain biases to look past a home that has hideous color choices (subjectively speaking). I tend to then find more faults in these houses. Houses that are relatively neutral are much easier for me to envision what I'd do with them differently and so I find myself picturing my family living there. As a seller I would want to maximize more of the latter obviously. Edit: I should also add that since we will be selling our house we recently painted the rooms that were "our colors" to more neutral ones to make it easier to sell.