I have staked quite a bit in SP but did grab a mil of SPORTS myself on the low price. I too think once enough people are staked and the people who are just using it as an income stream are marginalized it will have to go up just because of Supply and demand. I trade for a living so think you're absolutely right. Once the rewards diminish, there will be less for people to sell and the people who stake won't want to. It will become higher in price due to demand.