If I'm going for a new gun I will get the Mossberg, that being said if I found an older 870 I would buy that over even the Mossberg. An old 870 can be found and often at a good price and will give your great great grandkids reliable service. Most people do not shoot shotguns high volume, the shotgun in recent times has been looked over in the pursuit of the carbine (for some good reasons to but the shotgun absolutely still has a place) for this reason alot of pawnshop or gunship finds on our older pumps can be found pretty easily. There are other good options like the Ithaca, maybe an old Hi Standard Flite King, Winchesters, but none of them are as customizable as the Mossberg and the Remington.