It is like every other car, if it has been looked after it will be ok, most have a hard life due to the nature of the car but are still looked after.
Some people own them when they cannot AFFORD to run them so bodge them don't service etc, a classic case above a remap is ONLY necessary when it has not been done correctly in the first place, but can be an aid to slightly better running when HIGHLY modified.
They are a doddle to look after, cheap parts as well, if you cannot do a cam belt on a cossie you should give up as this has got to be one of the easiest cars in the world to do, jammed pulleys apart.
As said 2wd make for cheaper repairs when transmission things go bang on 4wd.
They do need treating with a lot of care especially when wet, or you will become friends with the local hedge!!
They need decent oil above all, but servicing if doing it yourself(dad) no dearer than any other car.
tabetha