The ones I saw at Kroger last night were about $80. They were being run on special for about $60. I didn't happen to catch the unit weight cost of them, though. I would expect a whole loin to fetch in the neighborhood of $8-$12/lb
You shouldn't pay more than $6.99 for a whole one. Look for ribeye on sale and tell them you want a whole one in bag. They will cut you a deal. Leave the lip on too for smoking, it adds flavor and moisture.