I put just over 80,000 miles on the 99 F250 7.3 4x4 with 295 BFG ATKOS. The first set was $850 with tax and mounting, the same place wanted $940 for the same tires two years later, got them at tirerack for $740 plus $60 for mounting and such. Sears had these tires for $135 just before Christman last year.
The 285 Yokahomas are good tires as well and my budy has tons of miles on his set on his 99 1 ton 4x4 diesel and are way cheaper then the BFG's.