My assumption is that if A is preferable to B, then there is "something wrong" with B.

I use a fan to keep my room cool. An air conditioner would do a better job, but what I have is a fan. I don't see anything wrong with using a fan.

To which I ask: why?

For the same reason anybody argues about anything--I disagreed with you, and was looking to either convince you of my reasons or learn new facts which would convince me of yours. But you seem not to want to argue about this, and it's rapidly becoming more stressful than enlightening, so I'm happy to drop it.