Totally new to the field I bought my gear on the basis of thread comments made by hobby machinists...'It's a nice machine, but a bit small now'...'gee, I wish I had a larger machine to start with'...'stretch the budget and get the biggest you can'...etc.
As others have said, once you start adding vice clamps, rotary tables, milling tools etc, the deck space quickly disappears.
CNC - throw it in the back of your landy with some stock and get the part you need anytime.
Pocket NC Company
It's a slippery slope - you'll want a CAD program next!
And there's 'making the tool to make the tool'.