I spoke to a few Dash community members about Gulden and PoW2 and SegSig. They said with Dash masternodes it provided stability and people with enough Dash to become their own central banks. PoW2 will be what attracts people to Gulden and ultimately have a positive effect on the price.
One of the more technical guys I spoke to, said he was watching Gulden but didn't think that SegSig would be possible, he also said SegSig wouldn't bring in the money like PoW2 as general users won't care about it but it's technically one of the best updates that has been done in blockchain history. The long term benefits of SegSig cannot be underestimated as blockchains become used more.
I told them that since it's in testing it has been achieved and the release date should be imminent, 2018 is going to be a good year for the Gulden.
Will 1 million coins give good interest?
You don't need that much, only 5000 to witness but you do get better rewards the more coins you have. Anything between 80 000 and 120 000 would be more then enough and trying to buy a million coins at these low prices would push up the prices by 50%.
The total supply is 358 million and if everyone tries to witness with 1 million coins it would mean only 358 people could possibly witness. This is why 100 000 which is still more then most will witness with is a good amount.
Draining the swamp won't require a 50% increase.