in my opinion siacoin is not like it used to be, maybe siacoin was crowded because fomo was strong, but after bearish market there was no news about siacoin,
in my opinion it is better to choose an active coin and clear use, even though the coin is new. because new coins in 2018-2019 in my opinion are pretty good when compared to 2017.
There are too many coins/tokens doing the same thing. Its no longer unique and there are better coins has the same feature.
Development in Sia is pretty slow compared to the newer projects that are flexible that can adopt new features to improve the platform.