Don't worry about tomorrows value of bitcoin, just concentrate your affords on promoting bitcoin as a currency, get more and more companies to accept bitcoin more and more people will see the usefulness of bitcoin so more and more people have a reason to hold bitcoin other then for speculative purposes and the price has to go up in the long term.
I hope you understand, that just hold bitcoin don't affect the price, and will never increase the price?
well I probably should have expressed myself more clearly, as bitcoin becomes more useful as a currency, more people are going to want to hold some bitcoin in order to spend it on some stuff in the near future, They will want to hold a little cache of bitcoin, they have to get it first of course, which should increase demand thus drive the price up