Re: Low pork prices
No experience with Duroc that I can think of specifically, but because it's just my wife and I at home now I've been moving toward the heritage breeds from local farms and so far it's been a pretty good experience. Yes, it costs a little more but having to buy less of it helps balance things out. Plus the stores around here seem to sell mostly Smithfield pork, and since Smithfield is now owned by an overseas outfit I'm not all that keen to buy it.
I'd say that you should definitely check out the chop at Jimmy's, but only if the kitchen will cook it to order. Overcooked ordinary pork is bad enough, overcooked heritage pork is darn near criminal.