Re: New(er) jeep
I never owned a wj, but I test drove one. the wk is much bigger inside, well in general of course, but with the kids being older the wk is/was a better "fit"
I have an '05 and got her with about 104k IIRC, now she has almost 152k. I had to change the starter & water pump last year, and the front axle bushings the year before. otherwise one sensor, batt and struts/shocks. not bad really. I have a hemi with a DS & trans tune from flyinryan and it runs like a bat out of hell! My only complaints with the hemi are/were the lag from the DBW and some soft shifting, both of which are 100% better from even DIY DS tuning.
Hope that helps!