most of the dash is currently locked in masternodes
Just to clarify. No Dash is "locked in masternodes". This is a fudster myth
(A popular one, but still a myth).
No, it is not a myth. It is *economically* locked in. Technically, you can move it, but you lose your master node, and its reward. So you won't.
If DASH's price rises, you keep it because you get a *higher* (virtual) rise than DASH's rise (you get an extra interest). And if DASH falls, but less than the reward, you are still on the winning side if you keep it. This is different with a coin that has no PoS mechanism, which is hence fully liquid.