The way to avoid falling into a malaise is with change. You listen to other MGMT songs. Or you find other psychedelic rock songs. Or other rock songs. Or just other songs period.
I find the farther I move from the worn out pleasure the greater the new pleasure is. Finding yet another pump up song to put on your workout playlist is undeniably pleasurable, but discovering that music can serve other purposes beyond exciting is on a whole different level. In other words, finding August Burns Red after listening to Metallica is good, but finding The Beatles is much, much better.
But there's the rub. It take effort -- activity -- to make that discovery. And with that activity comes risk. If I want to listen to music right now, and I know I enjoy a certain kind, why take the risk of playing something new when I might not like it? No, listening to Offspring's Americana for the thousandth time won't be a life-altering experience, but it's a known quantity, and I know I won't hate it.
I'm not ordering everyone to change their life now. Honestly, I'm not sure how to straddle the line between comfort and adventure. It just makes me sad when I fall into a rut. And for me, that easily happens.
Would I enjoy any other RTS more than Starcraft 2? I don't know. I haven't played a non-Blizzard RTS in years. Maybe there's another a genre of games which I would like more? Couldn't say. I play other games, but I don't invest myself in them the same way I do for Starcraft 2. They're just ways to relax after playing Starcraft 2. It's frustrating. Maybe video games just aren't for me? Maybe I would love golf? Unfortunately, I'll probably never know.