Yeah, Casper's trying to solve a problem that's already being solved by other established cryptos like Siacoin (SC), Storjcoin and a number of data storage centric coins. Because you see, the market for data storage and security is huge and has mind boggling opportunities. But just like any viable opportunity, it's also rife with enormous challenges. One of which is scalability.
I guess the real question is what else does Casper bring to the table? How is the investor better advantaged by investing in Casper instead of tried and tested coins like SC, etc? Who are the developers behind it? How experienced is the team? What are their plans to tackle scalability, etc? How effective is their marketing strategy? What strategic partnerships do they currently have and hope to have in the coming weeks/months/years? What incentives are they offering to storage vendors? The list of questions are infinite lol but I suppose these are some questions investors who are doing their due diligence would want to ask.
I certainly wish Casper the best in this emerging crypto-economy. But they've definitely got work to do too.