They can easily be had in .22,Availability and weight might play a role as well.plus mike was discounting his pump to make a package with them so you save more like $70(unless he is will also combo the pump with the b50?)and they only used to cost $105...so they were $100 dollars cheaper.That's enough for a decent scope for a person on a budget.(but I agree with you the b50 seems like a lot more gun for the price.)I have a question for you b50 owners, how is the trigger? is it adjustable?how did it come from Mike?same for the xs60c whats the trigger like?JosephOh and I think you could switch calibers easily with the xs60c.(correct me if I'm wrong)