I used my iBook 366 Indigo from 2003 until 2006 when I got the original MacBook Pro. I sold that one a year later for my current 07 2.16GHz MacBook Pro and I really don't see myself replacing this one until it breaks. Its really much faster than I need and doesn't see much time off my desk (I use my 12" Powerbook or TiBook on the go) so with the exception of natural hardware failure, I don't see it dying anytime soon. I just don't want to spend the money on a new computer, and the current MBP lineup doesn't really appeal to me.