I play pump because every freaking electro I get breaks. Well that may be part of it but the real reason is because its fun. I get absolutely no enjoyment out of playing with an electro. I find it way too easy. It's easy to just sit in the back and fling paint and get eliminations.
I love the thrill of pump. I like moving up, getting awesome shots on people. I love it when I'm snap shooting with someone who's ramping and I one ball them and get them out. Now that doesn't happen all the time but it happens quite often.
Pump has made me a better player and makes the game fun. I don't care about how it saves me money. If I was worried about saving money I wouldn't play paintball.