Just use it as a currency, save some and spend some, no different to fiat.
It might go down we never know how things might happen , it all depends on how much people are using it and how much investors are willing to invest effort and money into this future currency.
There has been talk about one or a couple of the bigger miners refusing to sell any coins causing the price to drive up but i don't know hoe much truth the stories have to them because i haven't seen much follow up.