Dear Sins Devs,
Please add my voice to those expressing appreciation, excitement and enthusiasm for the announcement of Entrenchment, and in particular the format of three micro-expansions.
I am far from a "fanboi", but have enjoyed playing Sins in what little time off I get from work (I work 60+ hours most weeks). It's not the only game I play, but due to its replayability and (as I recently discovered) friendly (for the most part) online community.
I can't guarantee that I will buy the expansion sight unseen, but will probably wait for it to come out and hear other people's reactions, determine how it changes the game and if I would derive more enjoyment from it and my $10 would be well spent.
From the quality of the free updates, I expect that I will end up purchasing it, and the format the updates will be released in makes it even more appealling than having to wait many years and drop more cash on it at one time.
Working in management for a major retailer I understand a small piece of the hassle it would be to bring these mini-expansions to retail and think it a wise move (in many ways) for it to be released online only first. I eagerly await the further details, news and player reviews of Entrenchment.