With all those new computers I'd say you don't have to worry about backups for at least another 2 years.

I guess that comment was cynical, but just to be sure: http://blog.backblaze.com/2013/11/12/how-long-do-disk-drives.... Especially in the beginning there is a higher failure rate for disk drives. So it is actually the opposite: backups should be one of the first things to arrange for new machines.