When I'm thinking regarding my investment ( and we all should ) , im looking into the investment that will matter in the future , as current situation is changing ( and it will keep changing ) , always look for the ground-shaking new disruptive technologies that will attract fresh investment to inter the market, that basically will have a huge space to grow ( i mean in value ) and thats is the one that deserve to buy and hold for a decent time , and of corse to be happy when the times come ,,, and the idea find its way to grow and catch the proper attention .

Good luck