waterfall in tank?

I have a 2 1/2 foot ball python and I was wondering if I should put a waterfall in his tank. I have looked this up many times before and I saw both yes and no. I realize it cost a lot of money and it is hard to keep clean but I just want something to make his tank look cool that not a lot of people have and was wondering if it is safe.

Biggest problem I could see with that is that it would keep the humidity levels incredibly high in the tank, which could adversely affect the snake's health.

It would also depend on the design of the waterfall. You wouldn't want any tubing it could get into, or intakes where it could get its head caught, or electrocuted.

I think there's a youtube video where a guy put a pond, lake, or waterfall in BP tank. It's to take some work and maintenance.