10 in rims are great for the "balloon" tire look.
more and more people are going to narrower rims.
kingpin offset is off with 8 in wheels, and REALLY off with 10s. i like the wider look, but not getting it by wide wheels. thats why i cant wait to go to a full width axle and probably 7in wide rims, out side edge will be the same as stock axle with 10s.
probablt 40% of desert racers run 1250 tires on 7s the majority on 8s, no one every runs 10s, ever, besides me for now :-[