Mine:
Purchased 2 years ago, 2007 JKU Sport, manual w/ 118,000 miles. Clean tile/1- owner.
Jeep: $11,500
Clutch: $900 installed
Immediate maintenance/fluid changes (all): $100
Repair: Front crank shaft seal; $10
Maintenance: plugs, Mopar pcv, Mopar radiator cap $30 (got the factory champion plugs dirt cheap from friend who sold jeep).
Fun: Wheels/tires (takeoff 33s, Rubicon Recon wheels), used soft top, Pedal Commander, re-gear to 4.56 (fr: 3.21), newer year/redesigned gear shifter, inner shift boot, Smittybuilt neoprene seat covers, leather steering wheel cover, factory Sahara rear bumper paint matched; about $3100.
I'm in my Jeep about $15k, incl moderate maintenance. Not too bad.
Disclaimer: most accessories I have bought dirt cheap from classifieds where people have sold their Jeeps. AND, the parts I replace, I have sold most of them for the same price or a little more than I bought the other part for.
Best things I've purchased: Re-gear to 4.56 gears (running 33" tires) and the Pedal Commander.
Wants:
1) 35" tires because I'm revving about 3100 rpm at 75mph (speed limit here is 80mph).
2) Exhaust system (with the regear and Pedal Commander, it seems as the Jeep needs to breathe better. Id rather not get a cold air intake, due to going on dirt quite a bit, but I know it would help)