It's not a week of doing nothing other than learning. It's a week of slightly reduced productivity while you adapt your processes to make use of the new system. In almost every case it is my experience that
you end up more productive, so the investment sees a return very quickly.

It's a little like a colleague of mine some years ago who complained that every time he used his new printer, he had to print things a couple of times to get the result he was after. He had time to do things the slow way, but no time to learn the fast way. Pretty short-sighted.