I’d say it’s the opposite. Choosing Rails is understanding what is important. To follow on your metaphor, beginners worrying about becoming too bulky should be worrying about getting adequate nutrition and rest; the basics. That’s Rails.

You can start with a Don’t Grow mentality. I have, and it’s working out great. My company makes choices based on that principle, and we’re profitable. But we understand that we don’t want to be a huge corporate conglomeration and never will be.