I think the main reason you don't see more of them is simply the price. They are a more expensive weapon than a mossberg or remington. But then again they made better as well in my opinion. I personally wouldn't buy a wingmaster over a nice BPS, the BPS is just a better gun in my opinion. But if I just wanted a beater gun it's hard to beat a 250-300 dollar mossberg or remington field grade model.

Some don't like the bottom eject either because it is more complicated.

I have owned a mossberg, remington and the new H&R pardner pump. My next pump gun will be a BPS and I will keep it.

Paul