"Good enough" is a tricky metric. The mass market doesn't really know what "good enough" is until they're told that something is or isn't (if they aren't technically inclined, how else do they know what is possible or if what they have is as good as it gets?). If the industry had never come out with DVD, DVRs, HD and BDs, I'm sure the average consumer would still be using a VCR in EP mode and it would, for most of them, be "good enough".