I believe in SIA, i think this is a looong term investment though.
They recently announced that they not looking to boost the value of thier coin, but rather the building of SIA.
I believe this is the right approach and is why i am keeping a piece of the pie and forgetting about it for the long term.
However, check out StorJ. They could definitely disrupt SIA and is much more user friendly.
SIA is still my No1 decentralised stoarge system.