I love working on both older and newer. I have a temper problem working on autos also but, jeep is the exception. I think there a huge difference in fixing a broken car so you can get to work and installing something that didn't need fixing in the first place. I think I just get tied up in the thought/moment. I like seeing how things work and like seeing results. To answer your question though The older ones are like Erick said. More room, parts are cheap, and parts from other makes fit/work better sometimes. Thats where the saying J.e.e.p. just everyone elses parts come from lol. Not to mention the brotherhood you are in. If you break down on the side of the road in a Jeep, people will stop to see if they can help. I have a funny storie of when I broke down on a side road by TAFB. I had military guys out there in pouring rain helping me out. Ha