GPU miners only want their hardware to work. DigiShield was all the fix any coin needed. Scrypt asics aren't the multiple orders of magnitude more powerful than GPU's like sha256 was because scrypt is a lot harder to "game". You end up with an asic that is marginally better. Switching algorithms means that huge farm GPU guys (the children whining) can monopolize a coin. At least right now someone hobby mining can go buy a gridseed for a hundred bucks and compete. Switching algorithms is pointless, and a huge waste of time that only benefits the whiny GPU miner.

But more importantly.... look what happened to Blackcoin. They ended up having to set up a compromise multipool just for their coin because nobody likes weird algorithm coins. They all fail. Switching the algorithm will kill Digibyte. People don't like unpopular algorithms. Those coins all fail.