At least plastic bits aren't a thing to worry about. I picked up a Pronea 6i body for the sake of using up a bunch of APS film I found for super cheap and the lens it came with (28-70 IX) had 2/3 of the plastic bayonet mount ripped off and somehow I didn't notice until after I bought the thing. I'm just thankful I can use the rest of my F-Mount lenses on it.