Oddly enough I even enjoy cleaning all of them. It's kind of therapeutic. And more often than not, I go out with a very specific plan for what that day's goals are. And my whole day will be at the range. Not hard to get through a lot of stuff when you're spending 8 hours there and have a plan in advance of what order you're shooting in, what you need to accomplish with each, etc.
Every so often I'll get invited to a range day by some friends and it's just a bunch of plinking and having fun and on those days, I'll just bring a bunch of my fun stuff to let the other guys play with but won't actually shoot much myself. My tism doesn't let me really enjoy shooting much without a specific purpose.

I think that's why I've never really cared that much for full auto stuff.