It's an honest way of looking at things. Absolutely everything we do in life, we do to avoid suffering. From every little movement of our bodies to every big life decision, it's all motivated by the instinct to avoid suffering. So really, contentedness is just a state of minimal suffering. But you're considered a pessimist if you see things that way, even though optimism is as irrational,--and potentially more dangerous,--than pessimism. (And anyway, understanding that life is a meaningless void of nothingness isn't pessimism; it's a completely rational position to take.)

Anyway, yeah, screw happiness. Don't you think it would be great to get a lobotomy? I don't think you can get them anymore. I wouldn't mind being in a semi-zombified state.