Lets just go to the point and say that this is something along the lines of an investment, I just can't see a wallet company ever going to be able to turn a profit in an age where there are so many of them and they're not really charging a dime to do anything right now, the only company which I can think is charging people to be using their wallet services is going to have to be BitGo. But the only reason for that is due to them being more of a corporate / company option with added security features.
Even if it is an investment, there's no money there.
Even if it is an investment, there's no money there.
i'd guess many of them are simply building something up in the hope of being bought out. then it's the buyer's problem to monetise it.
there are avenues to make money. you can buy and sell inside the wallet, do stuff like have links to trezor sales, and they also gather information about usage to sell on like pretty much every other internet company.
being able to trace where money is spent and how much could be extremely valuable in the years to come.
Karma 
