Time to sell
It seems funny to assume that. I mean I haven't been tracking the underlying fundamentals, but the nature of most currencies today is that because they are managed, they tend to go up and down. If the fundamentals are solid for Bitcoins, as in there is actually increasing demand (which seems feasible given all the new services advertising their acceptance) and the supply is increasing in tune with expectations (which…
Notice i did not say everyone using bitcoins are speculators.. but if you are say a merchant with goods available in bitcoins, (and you don't wish to speculate) you will peg your price to your local currency, and after selling your goods will sell your bitcoin immediately for local currency. Which means you are no longer holding bitcoin or having any impact on bitcoin demand.