Ive run mine (33x12.5x15) for about a year without any real harsh tread wear to speak of. They don't create too much highway noise. And they actually ride off road just as well as they handle on road. I could probably get another 2 years I would think out of mine. If the PO ran them for a few weeks.... they should be closer to 99% unless he was doing some crazy burnout sessions.
2000 Patriot Blue TJ V8 ZJ front springs 2 inch BDS rear spring spacers, BDS shocks, Warn front bumper, Falken 33" Rocky Mountain ATS wrapped around 15x8 Flat black Procomp Series 51 wheels, Rampage bowless soft top, Alloy USA front axle seals, some other doo-dads here and there and more to come.