I love my WSM, and use it a ton, but I have to mirror everybody else's advice. If you could only have one, I think it would be performer. HOWEVER, you should be able to pick up a performer cheap (I've owned 3, all gas assist and never paid more than $25 for any of them) and then bite the bullet and get a WSM new (or luck into one of them used, but there's a LOT less of them on craigs, in my experience. For my money, gas assist is the way to go as well. The best part is that you really can't go wrong-they are both awesome.