I don't think investors are really considering the size of the markets that bitcoin can potentially disrupt.
Not yet.
Really? There seems to be lots of investors putting millions into bitcoin related start ups at the moment.
How many Snapchat users?
Many, many indigent teen users who will never spend any money related to anything they see on snapchat.
Doesn't really matter. They still rake in money via adverts but these sort of apps are great at collecting vital info which is worth a lot of money to certain organizations whether its for advertising or spying.