Scarcity of bitcoin is not the driving force. Many alts are scarce too, they have no potential. The main driving force behind bitcoin should be growing community and adoption. We need to increase the use of bitcoin on the internet and promote bitcoin to new users. More new users buying bitcoin to spend is the only healthy way to grow.
There lies the main problem(s) we face as a community - achieving trust, recognition, acceptance by average joe. How do we do it, there is no quick fix.
How do we convince the average bloke on the street that he needs bitcoin?