They last longer? My old PlayStation worked for 12 years and broke down because I left it in a damp, moldy cellar. In that time I've gone through 2 desktops and 6 laptops. I have a friend with a 15-year old N64 that still works perfectly. I know of people who have working Super Nintendos, with the original lightguns.
What the hell do you do to computer hardware. There is almost no real difference in the mean life time of the components of a console vs the components of PC's or Macs. This is even more true these days since consoles use more and more PC or customized PC hardware.
