I run a '96 Foreman 400 mostly on rocks, sticky mud, and some blacktop, no snow. I don't know anything about the Maxxis tires, or their cost, but I have run factory tires, Strykers, ITP Blackwaters, Mudlites, and am presently trying some Dirt Devils. The ITP tires seemed to wear out fast. Don't know about the Dirt Devils yet. I run 26 x 12 x 10's in front and 26 x 12 x 12's in back. The Mudlites and Dirt Devils have very aggresive staggered chevron cleats. Very good off the road, but not so good on blacktop. I run 4 lbs in them.
So far, I've been able to negotiate with Discount Tire for two sets of 4, mounted, for $300. Don't know how long that'll last though.
We have a lot of prickly pear, sharp rocks, and cedar stumps. The factory tires can't take it. I've sliced and diced a couple of them. The ITP's and Dirt Devils have much thicker, stiffer bodies, but still need at least a pint of monkey snot in them. I put a quart in each tire. I also carry lots of tubeless plugs, and an inflation kit my brother made up with a large CO2 cartridge that fits the paintball guns. It works like a champ unless you cut a long slice in a tire.
The toughest tires I've ever had were the 4 ply Carlisle Strykers on a 300 CC fourtrax, but they are not aggressive enough, and are not available bigger than 25".
I always warn the guys changing the tires not to run their hands inside the old tires. Besides the monkey snot, there will be a lot of the big prickly pear thorns sticking inside them.
I'm curious about the Maxxis tires and will look them up. Always looking for something better.
Tom