solar Q: 2 small vs 1 large

My first solar was the Renogy 100w suitcase and I played with it and got the solar experience. I quickly realized that setting it up was a little more inconvenient than I thought and the portability made it a security risk. And there is no solar charging while on the road and the 15' cable didn't give me enough maneuvering when parked in shade. So I figured out how I would run cables from the roof to the battery compartment, ordered a 200w Renogy kit (actually got parts separate to make my own kit), mounted the panels on the roof with a charge controller of my choosing. Now I always have solar without doing anything. My next project is to make a "Y" connector into the charge controller so I can bypass the built-in on the portable and run longer cable for those times I park in the shade.
BTW, you can order the 100w Renogy suitcase without the 10a controller and go to your preferred controller with longer cables. That is the way I would do portable now.