Is it worth it?

If it's in nice shape and drives well then I think the price is good, that's very little money for solid comfy transportation. Things to look out for, well oil leaks, plugged up crankcase breather (which can cause the former), crumbling engine wiring harness (pre-'89), and other various things that older cars can need. The mileage isn't much concern, I've got almost 300K on mine and it runs fine, but if it's over 200K or so it'll probably benefit greatly from new suspension bushings, shocks, struts, possibly front wheel bearings. If the car is in good cosmetic condition I'd go for it, mechanical issues are easily fixed, but cosmetic stuff is hard to find and pricey.