Leather isnt THAT hard to care for decently anyways.
Wipe it off regularly, be careful to not rub on the side bolsters when getting in & out, and treat it occasionally and you're good to go.
Although, for some people even that is too much work. it really depends of if the owner cares enough to keep their car in good condition.
The softer leathers require more thoughtfulness than the stiffer leathers. My stepdad was so lazy, the super soft light tan leather in his GS300 was stained by pen ink and there was a 6" rip on the driver's side bolster from a bad button on the back of his pants. You can tell the rip was caused over time, not all at once, because the surrounding leather was thinned out and the coloring had disappeared. Poor GS :bawling:
The leather in my 328 convertible is a lot thicker & harder feeling, and I dont need to watch out for it as much.