I share the feeling on depreciation. Let us ask ourselves - "How long is the depreciation period in your company?", 3/4/5 or 7 years. Depend on your company policy. Looking back to the speed of recent new hardware or technology, how long would you think your notebook is not capable for you on the road. I bet it is 1 ? year. Does this match your depreciation period? NO!! I think the reasonable depreciation period for hardware is 2 years (maximum). Otherwise, this becomes a stopper on business.

Back to the track, my company has tape currently. However, I am considering a harddisk backup solution for daily. The old solution may become a secondary offsite copy.