Desirable is relative. I wouldn't live in SF for 3 times my current salary. It just isn't my thing and lifestyle is extremely important to me. Maybe you mean a

Desirable is relative. I wouldn't live in SF for 3 times my current salary. It just isn't my thing and lifestyle is extremely important to me. Maybe you mean a few highly populated cities that are booming at the moment. If so, I'm sure you are correct on that point.