I think the decentralized storage applications will be hard to make work with them compete with google, AWS, Box, Dropbox and the rest of the big guys. It also has a problem of keeping illegal files off of other people's computers. I think a storage solution has a lot more issues than Golem which can solve a lot of issues immediately. Plus with Ethereum going to PoS if Golem is profitable then all that hardware will be turned to that network which is a HUGE win.