I for one am satisfied, I paid £15 and got over 400+ hours in the game, and I am still playing it, and the devs are still adding stuff, a win in my eyes.
If the game was a barely working bunch of code, bereft of any content and just boring busy work I could understand the ire, but for me at least it seems to be fun and gave me hours of entertainment... a case of beers costs me £18 (for now) and last maybe 2 nights.