I bought this from a friend with 80,000 miles on it in 2004, before gas prices went up. Since then, all I've done is do the recommended timing belt/water pump change @ 110,000 mi (they looked brand new. Otherwise, I just drive it (about 20,000 miles per year. In the summer, with the air off, I can get up to 42 mpg. With the air on, I get 36 mpg! I carry two kayaks on top and get 34 mpg! I change the oil every 3,000 miles, that's it. Not the most comfortable car for a long drive, but at 40mpg, I can out up with it. The only problem I've had is with the driver side window falling off the track, which I can fix in about 15 minutes. I love the DX, as has no power anything to break!
Gas Mileage, ease of parking, fun to drive the little stick.
Better sound proofing, but I think the newer ones took care of that.