.50's are highly specialized firearms, not for the casual shooter. Ammo is devilishly expensive and finding a range that will accommodate it could be problematic. Shooting it at ranges less than 500 yards would be analogous to shooting a tin can at 25 yards with a scoped 25-06! Hardly worthy of it's accuracy potential!
Some in the shooting community might think that ownership of them is a status symbol.They are for long range shooting ONLY!
I want one, but Brent touched on all the issues that have kept me from making the plunge. Ammo prices touching $3 - $4 a round are a turn off. Also I do not have access to a range where I could shoot a .50 to its full potential.
I've shot some Barrett model .50 not sure exactly what model at a range that only went up to 200 yds. You need a lot more room then that to really get unique use out of such a unique round, so that fact plus cost has kept me from buying one.