I try to shop them all. I picked up a couple of (5) quart jugs of Pennzoil Ultra for the cars, at $28.00 a piece at Wal-Mart. I usually just buy oil there.
I try to buy my oil filters at the other places, or watch the circulars for specials. I like Bosch, AZ sells them.
There are good deals, now and then. I wish one place, could do it all.
I agree, $8.49 is an excessive price for a quart of oil, even it is a great oil.