Actually, I am a teenager, and in my school, I am one of the FEW who has heard of Spring Awakening. Trust me, it is not that well known, and while compared to Rent, SA is nowhere near the breakout hit Rent was. At this time, Rent was selling out. SA isn't.
And while SA is very loved in NYC, it WON'T tour well in the more conservative states. That's why Curtains will win. It can tour well everywhere.
I am a firm believer in serendipity- all the random pieces coming together in one wonderful moment, when suddenly you see what their purpose was all along.