Like I said in the first post, I'm all for owning what makes you happy. I purposefully compared the .338 lapua to the big 50 because, in my humble experience, if your going to spend big money on a long range fun gun, what could be more fun than sending 750 grains of hot lead way out yonder.
Justice points out that a Barrett. M82 is very expensive, there are cheaper alternatives. Shooting the .50 can be almost as reasonable as shooting the Lapua.