It seems like they change their chipsets a lot more then AMD which would seem a little bit annoying.
Well yes intel change their chipset more often then AMD. But well so far depending one what your doign with your computer it doesn't mather a lot.
If your a gamer an i5-2500k will last you for years. You'll just need to switch your GPU and PSU befour needing another CPU.
For poeple doing 3d rendering and a lot of editithing, its different.