Originally Posted by BGM

I think a lot of this is more about how long you keep your car, where you live and your willingness to do it yourself vs. having someone else do it.

1) I keep my cars a long time. If I was leasing I honestly wouldn't care too much who washes it. Kloogy--if you were to keep having someone else wash it week after week for 5-6 years there is a good chance their process is not as controlled as if you did it yourself and thus your paint will have blemishes.
2) If you live in a Northern climate your options are limited on where to wash it that is not an automatic wash.
3) Some people take more pride in washing their own car and some don't. No one way is right or wrong--it's personal preference.