> I would gladly even pay $50 per month for unlimited access to a place to just come in, get my blood sugar, kidney function, heart function, liver function, etc. tested once per month!

I've noticed my gym offers somewhat regular screening days which offer some (or all?) of that stuff, but it still costs extra. Reasonable (~$30?) but it would probably be something used more regularly if it was just part of the membership, and considered a normal thing. I don't even think they offer it monthly - I think it's quarterly.