There will be big announcement very soon which may shoot SC in much higher levels. As you can see here (siastats.info), the usage of Sia network is rapidly growing but with this news it will be flying as well as the SC price..this will be something (just wait for official announcement). This may start bullrun like in 2nd half of 2017.
Rememeber: Don't think of SC just as speculation altcoin. SC is completely different than other altcoins - it has great utility which is growing and adoption is ongoing, so owning some SCs is simply win-win. When you buy SCs at right spot, it can bring a lot of money in the future BUT even if not, you can still use it to store your own data in fully decentralized cloud (without any 3rd party observer) for a very cheap price.
Amazon S3 and Google Cloud with their price 20+$ per TB can go burn themselves in comparison with Sia where price per TB is about $1.3 + decentralized.
Just think about these facts.. but still.. this is just my personal opinion. Your money, Your responsibility!
Always invest just that much money you can afford to loose (that is my best advice). Happy trading!