So as I understand it, when Ethereum converts to full Proof of Stake, the mining block reward (3.0 ether) will go away and only the transaction fees will remain.  The transaction fees are low (.5-3% of the total block reward).  Am I to assume that for each block solved it would only amount to 20-40 dollars (maybe 3-5 grand total a day)?  If that's the case, why would anyone even stake their ether coins for such a minuscule payout that you'll probably have to share with a pool of other stake holders anyway just to get a chance to solve the block?  Am I missing something?  Why even go down this road?