I'd rather not have any non-cosmetic paid services here because it isn't a free to play game. Exclusive cosmetic stuff is bad enough (unless Dynamight gold can be earned in game?) but understandable to keep the game getting support.
It it needs an ingame store then a little discreet icon is fine. I really don't want to be advertised at constantly like some games do. I loved the beta of a game called City of Steam but it launched with an asian publisher and constantly demanded feeding, like a greedy pet. They apparently separated from the publisher (I'd left before that) to try to survive but It was ruined beyond redemption by then and it closed down. They might have made money in the short term with their greed but wouldn't they have been better off thinking longer term? It's that situation that puts me off paying for an early version of a game.
From what I can tell, Dynamight aren't greedy money-grabbing scum. The Foundation is good evidence of that. I hope they can stay classy and implement any pay for convenience features in a non-obtrusive way.