That's why we need to do something in able to encourage them and put their interest into bitcoin.
People are discussing that "Something" which you have mentioned. If we let them know that BTC price will increase in the future and show them the graph how it has raised to 1900$+. They should understand that BTC will not be just a payment gateway, it will also be savings for future, then only we have a chance of getting them on board.
While that may be true at the moment, the value of the bitcoin could easily fluctuate up or down, increasing the risk for any local businesses wishing to accept bitcoins. This is potentially harmful for companies wishing to accept bitcoins because of the potential for its value to plummet, and thus entail huge losses for them. If we want to promote BTC, we must first instil confidence of bitcoins for local businesses.