I used to have to give bank statements for a lot more than 20.000 baht for a multiple entry TV in the days when I was young(er). 600K - 800K.. can't remember exact amount.
There was one time when my visa was under review, they even called me to send proof of no criminal record to get my visa approved.
I disagree. : unless you seek out the worst combinations, 2 points in Bangkok will many times be connected by less than 150 baht taxi meter fare, like Kool Breeze posted.