Cause stupid young kids want to be 'cool.' Be the badass with a five foot snake.
The last part of your post made me laugh though, I have seen so many posts here where people are like 'but I can't afford to get a t-stat, or heat things properly.' Alright well just because the dumbass at petco said get a small cage and one lamp and call it good doesn't mean that's how it is. Now buy the [stuff] or rehome your snake to someone that will, haha.
I have dropped so much money on my BPs perfecting their tanks since I don't have racks, and I dont regret a penny of it. Even though I bought things multiple times trying to get it right. It's trial and error, and if you can't put forth the effort to at least try for your snake babies you shouldn't have them in my opinion.
But I am also a perfectionist and need my tanks right on constantly haha