Are there a lot of revolver shooters in USPSA at all, let alone serious ones? ...
I rarely see people shoot revolver in USPSA, a couple of people in IL that I shot with did it, and now that I'm in Texas, I see barely any. Production was the hot item in Illinois, but here in Texas, I think I've seen almost as many Limited competitors as I do Production. More open here as well.
I'm looking at 3-Gun as well, and just bought an AR, but still need to get a shotgun, and I'm not in a huge rush. From a cost point of view, it's definitely one of the more daunting gun games. Good shooters will always do well I realize, but I got more into USPSA (and got better) when I invested into some purpose built guns. For 3-Gun, I'm not looking to break the bank, but I am looking, and willing to invest a little more for things I like, and can improve down the road, but still let me have fun to start.