I daily on 37s and do rock crawling..there is lots of it where you're at as well. I can usually net 15mpg or so out of it, which isn't bad with 125lb wheels [ea].
I don't care for mud in it, I can do that in a beatup pickup truck and I don't necessarily do high speed stuff in it. I get quite a kick out of crawling, it can be very technical driving and you can see quick results of modifications [tires, beadlocks, lockers, more travel, etc]....best thing I like about it is it's pretty much infinitely customizable and by most everything you can DIY if you can turn a wrench and weld.
I bought mine brand new in '09
She can stretch her legs pretty well with a short arm