$10K sounds pretty high to me, but when you get into vehicles that old they can range greatly in condition. Meaning, a well-kept '99 can be a more reliable Jeep than an '04 that was driven hard and put away wet. You'll have to look at a few that are available in your area so you can compare price vs. condition.
And yeah, '02 seems to be the sweet spot because it was after many of the common were fixed and before they started cheaping out and removing small features. Read WJJeeps.com for the details I can't remember right now.
So I installed the flux capacitor but the Jeep just won't do 88 mph.
-'99 WJ Limited, 4.7, Patriot Blue, 2" BB, 31" Mall-Terrains, Pavement Princess
-'97 TJ, Stone White, 4" Superlift, 33" SSRs, lunchboxed rear, 12K Titan winch, and 2.5 litres of exhillirating performance.