Oh, so people are allowed to define their own fun in sandbox games but no other type? What about those that play multiplayer titles without ever touching the accompanying single player? Last I looked online gaming was still booming.
Unless there has been a sudden influx of sandbox games then my 90% of games still stands.
So if a player enjoys messing around in a sandbox game but never attempts to further the story, are they also missing the point of what they should be doing? I assumed the point of games was to have fun?
And if you think getting to the end of a game is an 'arbitrary measure of success' then you've missed the whole point of 90% of games.
It's like thinking that sitting through a 2 hour film is a success rather than the reward.