I see it as 'how much you value that form of entertainment'. Everyone has different preferences and priorities. I'm sure you spend money on forms of entertainment other people think is foolish, too.
Myself, I attend one Packers game every few years - usually in the first half of the season and on games that either have a special meaning and/or I acquired tickets at-or-near face value. And never would I attend a football game and sit in the nosebleed sections. I attend a handful of Brewers games each year. Hockey is my favorite sport, but Wisconsin doesn't have an NHL team, so I have to travel to see games and therefore it only happens once every couple years when stars align. The NHL is the only league I care enough to spend money on a televised "season pass".
Alternatively, many people go out to eat regularly as a form of entertainment. I think it's dumb to spend more money than you have to on something you know is going to turn to shit.