>>21555341 (OP)
No. $68 is literally a full fucking raw brisket, albiet on the small side. $70-80 tends to net you the full packers cut (17-18lbs usually). From there you smoke that bad boy yourself. That takes about $10 worth of pellets (worst case) to smoke, the other methods will be cheaper.
With a bit of mustard for binder and some dry rub, S&P if you want to be basic bitch about it, like 2 bucks max here. Add in some amortized smoker cost and you are only looking at $100 or so per brisket, or $5 a pound in costs. If you factor in labor (it's mostly waiting) for a min wage worker its an hour at most per brisket for trim, prep, cutting, and checking on it, so like $6 or 7 a pound depending on state. Add in the overhead (sauce, bread, pickles) and profit margins and you should be seeing $10/lb max for brisket costs. Anything over that and you are getting robbed. For sandwiches $13-15 is fine, anything over that is absurd robbery.
Those chicken prices in OP is bonkers. Chicken is like $1/lb whole, $2/lb if you get fancy free range shit. A 5lb chicken is like 10 bucks max for us grocery consumers, that is 15 bucks of profit there.