I used to have a Tippman A-5 with response trigger but the hobby got real expensive real fast. Everytime I wanted to go out and play, it cost me around $50-100 at least and thats everytime. Balls cost an arm and a leg and they just go too fast so I sold everything on ebay. I will pick it up again in the future cause its just a blast to play, but after my wife is working full time again, as for now I can just afford my SM and thats just barely.
It is fun though.