While I agree with the spirit of the above (rkh), it doesn't always work that way. There's something to be said for paying more for a shotgun that works well, shoots straight, and operates reliably than 200 dollar Wal Mart junk. But I fail to see much reason to pay even more for one that has doily patterns engraved all over it, fancy metalwork and woodwork that will devalue if scratched, or a back story involving some Welsh nobleman or other beyond "because I can." Which is a good enough reason for anything, but not one I'll engage in on this front.
Besides, you could buy a 1000 dollar shotgun instead, still have an outstanding chunk of firearm, and spend the remaining 4000 bucks on clays and ammo.