Every couple of years I get a new computer. I used to love and hate that moment. Love the new capabilities, hate the week or two it took me to switch over. No more.
Most of my world now exists in the cloud and I can pretty much walk up to any computer, log in, and start producing. If I fall asleep while reading on my notebook, roll on it and wake up to discover that I warped the whole thing (yes a true story), I kick myself, pick up the other notebook and keep on producing.
Aside from the convenience, this is some of the best business continuity insurance I have ever purchased.