Groupon is poised to breakout sometime in Q1. If the company meets or beats in Q4 then this will get to $8+ in a hurry. Facebook last year marginally beat and the stock has put on over $20 Billion in capitalization since then.
There is absolutely no premium of any kind for any of their business likes, the way the stock is priced in the market right now. The early part of 2013 is absolutely key for Groupon to prove to the world that they are here to stay and dominate in deals and the local market.