Good for you
It is one of my ultimate goals to only eat things that are nutritious or "totally worth it." It is so easy to start eating food that doesn't taste good just because it's there, and then decide, "Oh well, I screwed up - I'll just keep eating." What a waste of calories I could have used on something that really tasted good.
Of course, the best circumstance is when you eat something that is "worth it" AND nutritious.