I like MyFarm's idea of a % of the block reward going to a transparent and accountable Spread Foundation, but I've proposed the same thing for Darkcoin several times and know how unpopular an idea it is.
No, no, no!
Transparency and Accountabilty are NOT equivalent with decentralization. In fact they are just camouflage to distract from their true centralized nature.
*edit: not once though in this thread have I heard any SPR miner complain, at all, that the block reward is going to get split between them and MN operators. This has been an absolutely fantastic and refreshing change from the Darkcoin thread, where miners have generally done nothing but bitch and moan about Masternode payments... so thank you fellow Spread miners for understanding that MNs will increase the value of SPR and are in your financial interest. 
That I can agree with.
But since decentralized masternodes will have to play the exact same competitive game like miners, nobody is going to complain anymore anyway.
Wasn't this the main reason so many DRK miners complained about DRK Masternodes? The reason why they compared it to "forced taxation" etc?
Because they felt that masternodes have it too easy while they do all the work and have all the risk?