So I am looking at the  S1 all in one color bundle.

The web site says the 40W Module is best for those wanting to do more cutting jobs while the 20W is better for those wanting to focus more on laser.

I want to do both, and the package I am looking at comes with the silk screen.

So would it be better for me to go with the 20W right now and buy the 40W later, or should I go with the 40W to start off with?