I have 3 - Met Pro, Whirlwind, and RBION. Gonna hopfully add JP Prem in a month or so. My space at the moment is good for 5-7. After JP probably looking myself at TZ, Deadpool, or Creech. To me, MM is kinda a snooze fest. Ramps and castle over and over again. GB Prem is good fun, but some people absolutely hate the magna slings and the ladder like modes. I love the game, but I also dont own one and duno how stale it'd get. MB seems shallow but it's kinda not. Diversity in shots, diff modes for each monster, and hitting the MB if you get em all is fun.