I personally think bitshares x has a better product than nxt with a truly decentralized AND collateralized market. I believe this achievement is being overlooked because this is the first time in human history that any asset on earth can be traded with actual collateral backing up the trade (btsx) and enforced automatically by an algorithm instead of people. This is NOT an IOU for an asset, which has been the only option in markets until now. Also, the DPOS model will be great if it stands the test of time because of the 10s confirmation times.
Bitcoin and nxt have both been tested with bailouts/qe/inflation with Mt gox and bter repectively and both have passed the test. The question remains; is work truly required to give a money it's value? This is more of a socionomic question and a bit harder to predict but I don't think so. I believe we will see 3 to 5 dominant chains emerge with Bitcoin being the primary POW, or digital gold. Other chains will provide other uses but their associated currencies will act as money in many cases. The alternative is for Bitcoin to survive as the sole form of money with open transactions, side chains, or some type of m of n oracle system to provide collateralized markets with Bitcoin being collateral.
Is not the alternative (bolded) more likely? Is this a true statement?:
The features of any appcoin can be emulated by a m-of-n oracles system that uses tokens pegged to bitcoin as fuel. If that is true, I don't see why, should some useful "app" actually emerge, that the equivalent systems that use bitcoin wouldn't outcompete the appcoins that use proprietary tokens. Which, like Cypher said, suggests that the value of these proprietary tokens should trend to zero.