I hear people talk about the old 870 Wingmasters or just old 870s in general. I hear quality and everything about them being great. Also people say that the new 870s are not as great. Sometimes I see these guns fetching a premium price. I understand old guns might be pricey, and not as good as a glock for self defense. The price on those old guns are more for people that love them (which I understand.) Do you think any of those old 870s can stand up the 590A1? 590A1 has been through some torture test from my understanding.