im expecting 1000 mn's though
If MNs hit 1000, ROI will then be 20% but will remove 25% of coin supply.
Selling "high" might end up being a losing strategy. In first year, reinvest returns into more masternodes, until ROI hits 10%, implying 2000 MNs. I think this will probably give the best long term result, at present. This should maximise sustainable income in future years.
If masternode reward is increased to 30% or more, this will probably be the outright winning strategy.