*sigh*
Please do not listen to this person.
Let me explain something to you. Ball Pythons, in the wild, spend the majority of their lives living in rodent burrows in hot, hot Africa. The heat of the sun warms the ground, while the ball pythons snuggle in their warm, slightly-humid burrows. These snakes do NOT bask, and they do NOT like bright lights. If you were talking about a colubrid like a Western Hognose, or even a Kingsnake, I might agree. But not all snakes fit the same profile. Any heat lamp that is warm enough to make a hot spot of 90 F is going to suck your humidity, and you'll end up with a dried-out, unhappy snake.
Edit: Not to mention, it is not 200+ for a basic hydrofarm thermostat and a UTH. Try more like 60 bucks And it's going to save you in electric bills.