Because the whole culture of sequels just feels really, really cheap. First of all, it means that developers can be lazy with their games, and don't need to spend much time refining them - why bother when you can just do that in a sequel?
Secondly, the plots of sequels, and generally the whole concept, never really makes sense. The game always has to make hundreds of excuses as to why the events of the last game are just happening again, and depending on how well the first game closed up all its loose ends this can range from slightly jarring to completely ridiculous.
And finally... I just hate the whole idea of "hey, this game sold well. Let's make a Popular Game 2!" Just the whole way everyone's reaction to a game that's even mildly good is "sequel time!" really pisses me off. And it's not even like there's any thought put into it. When you make an original game, you need a concept, an idea, you need to develop it, to build it into a whole game, a whole world. For a sequel? You take the name of the first game, slap a 2 at the end, then think about what complaints the first game got so you can make slight improvements... Then you make up an excuse for the events of the previous game to repeat themself.
It shouldn't work like that. Players should not be treated like unpaid playtesters, and when you release a game you should do so without the mindset of "when should we start the sequel?" It's just overall a really crap system.
Secondly, the plots of sequels, and generally the whole concept, never really makes sense. The game always has to make hundreds of excuses as to why the events of the last game are just happening again, and depending on how well the first game closed up all its loose ends this can range from slightly jarring to completely ridiculous.
And finally... I just hate the whole idea of "hey, this game sold well. Let's make a Popular Game 2!" Just the whole way everyone's reaction to a game that's even mildly good is "sequel time!" really pisses me off. And it's not even like there's any thought put into it. When you make an original game, you need a concept, an idea, you need to develop it, to build it into a whole game, a whole world. For a sequel? You take the name of the first game, slap a 2 at the end, then think about what complaints the first game got so you can make slight improvements... Then you make up an excuse for the events of the previous game to repeat themself.
It shouldn't work like that. Players should not be treated like unpaid playtesters, and when you release a game you should do so without the mindset of "when should we start the sequel?" It's just overall a really crap system.