how long will my ps3 last?

ive had my new ps3 slim for about 3 weeks now. its on wood in a neutral temperature room. there is around 30-40cm of ventalation behind it. I vacuum behind it once a week. I know i sound paranoid about it but im a previus xbox 360 owner and it broke 3 times.

You should be fine with that sounds roughly the same way I have mine set up. The one problem I did have was the laser died on me, but I don't think that had anything to do with me