GLwagon

If you can find what you need & the $ is right, DO IT.
I get used parts when I can depending on what I'm building.
Finding newer cars or just the right part isn't always easy...
& things like starters & alternators may be on their last leg if they are old...

Trim & fasteners, glass, rims, various sheet metal, & other great things tend to be good finds at a local yard if they aren't too pricy.

2.2RS

Most everything I buy is used!
Non-wear items (which would be shocks, starters, axles, etc) I would probably pass on. Any body or interior stuff, though, is great. Cheaper, and you're helping to recycle stuff that would go to the landfill anyway.

X1_SRT

Working at a a used car lot/ garage and dealing 95% in subaru's we have a junk yard w/ about 200+ subaru's. nothing you would be interested in, mostly loyales. but when we do get Legacys or Imp.'s people drive a ways for used parts. interior panels, lights, trim, hoods, wheels, pretty much everything. i would buy from a yard as long as they have a good rep. and you can find what you need. you'd be surprised what you can find in a junk yard sometimes. you just have to look for the treasure!
-PJ