I tried switching to a laptop-only existence several years ago. Didn't work for me.
I have an Apple 23" Cinema Display as my primary monitor, and a 19" Hyundai as my second monitor. I'd be lost and be much less productive without this screen real estate.
And ever tried watching movies on a laptop? It sucks. But my Cinema Display handles this beautifully.
Glad it works for you. Won't work for me, however.