Hmm, I lost two computers in a row to lightning storms, so those were about a year apart. Since then, I had another computer for three years. My dad bought me a replacement so I gave it to my brother. I've had the newer computer for two years now and will probably use it for at least another year or two. So I'd say 3 years is pretty close for me.
\_ My blog: Discipulus Scripturae