people are afraid that if they will spend coins on coffe today, tommorow they could buy a house. When bitcoin will be more stable- people will start to spend it daily
This is easily solvable, whatever you spend in bitcoins this week, you just go and buy on the exchanges in the end of the week. This is how you boost Bitcoin economy, you boost transactions and you won't miss out on buying a house.
That's at least what I am trying to do as much as I can!