This upgrade was the first I skipped and I am recognizing that I can live very well with it:
I have reduced my gaming time around 66% and I am playing only 1 PBEM RedThunder anymore and when we will have finished it, I probably will not start a new one.
I notice the dramatic impact already. Suddenly I find time for taking long rides with my bicycle again. Or I can read books in two weeks again, because going to bed earlier makes a huge difference. For the overall performance, too.
The positive effects are so big, that I begin questioning playing CM at all. Like I did when CMSF came out. It seems my life is better when I don't play CM.