The first mover advantage is great but what stops NXT from doing their own collateral or pegging system or a near-equivalent thereof?
Nobody it stopping them hope they gonna do it !! Nobody stopped people copying bitcoin either.
It's a question of IF something brings utility to the mass market and if the mass market is utilizing this service
The utility is here : "it's just an amazing way to store the value of assets in a decentralised way that's never been possible before!"
Truth will see how the mass market reacts.