19178.08 BTC Daily Transaction volume SharexCoin needs to earn YOU 0.07 BTC back in one year
It's 15x more than Cryptsy 24h trade volume

That's the point. With ShareCoins at 350 satoshis each, it's actually really stupid to purchase FeeShares because it would take you years to get the same BTC back that you would spend in FeeShares. I bought FeeShares as soon as I could and then did the maths and realised my huge mistake. I can't see the 3 FeeShares I own being able to make 0.2 BTC by the end of this year unless the system changes.
How is a 50% return in 1 year stupid?
The returns are infinite if you were given 3 FeeShares worth of ShareCoin as well.
That said, we don't know what the return is because we don't know the current revenue. If I was sure it would be 50% in a year I would buy MANY of them. Also, if the exchange does very well, then the FeeShares / BTC market will raise the price so in addition to dividends you are getting growth.
While everyone has said how expensive FeeShares are, their price has only gone up, against the expectations of many on this thread after the per FeeShare price was posted.