Earlier quoted context omitted.
I WONT BUY YOUR GAME! - I wont buy your game unless you let me try a demo. (PC-CDROM days) - I won't buy your game if the demo is too short. - I won't buy your game if I played your demo for hours and now I am bored of it. - I won't buy your game unless it has online multiplayer. - I won't buy your game unless it has twenty hours of single player content. - I won't buy your game if it has licensed content. - I won't…
Those are valid reasons to not to buy a game. You sound offended by customers voicing their opinions what they want.
But I guess if I were trying to be more serious I would point out that people who develop games are extremely aware of the pain points of gamers.