I see that my post was kind of controversial
I stand by my opinion: if you play a game for 50 hours, that's 50 hours of entertainment you got out of the game, I'm supposing you're playing for non-professional reasons
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If it was a "boring grind" or "you didn't enjoy the game" that's entirely your fault. Nowadays you have reviews, opinions, let's plays, you name it. You can even test the game for a couple of hours and refund it if you don't like it. If you commit those 50 hours you are either a masochist or you had a decent time with the game. Of course there are excellent games that are 7 hours long and trash games that are 50 hours, but it's your RESPONSIBILITY to dedicate your game time to good games, you can't blame the developer guys.