Leaking Valve Cover Gaskets

I just had an inspection done just 2 months ago at a shop that seems to have some good honest employees, and I know they probably just try to get state inspections in and out quickly, but it makes me a bit suspicious of Subaru when this shop didn’t notice anything leaking. I understand that the Subaru guys are probably more knowledgeable about my car but without fail they seem to be the only place that finds something that needs repair every time that will cost me $600-$700.