Very much so! There's some real evangelists out there on the internet who won't have it that anything other than premium brand product could be of any good to the engine!
There's also folks stuck in the dark ages / typically American view in that oil service life anything beyond 3000 miles is abusing the engine severely!
Rarer at the other extreme there's a few nutcases who believe changing the oil at all is some sort of scam by them bogey men "big oil"