I miss them, too. I remember reading their dev diaries of Tropico that came on the deluxe edition or w/e CDs. It was like a short book, detailing the life of an indie studio, trying to come up with game ideas, reusing methods that worked in their previous games, parking in the parking lot outside of E3 and inviting whoever they could to play a demo version that could have exploded at any moment but thankfully behaved itself... it might seriously be one of the best resources for getting a realistic understanding of small game studios. What I'm sad about, though, is that they were having very, very serious funding issues, but they didn't want to sell their studio. Finally, they were able to negotiate something with Take-Two Interactive that would allow them to remain independent but get the financial security that they desperately needed. They were afraid the entire time that attaching themselves to a big publisher would mean that they'd just get eaten up and lose everything anyway, but they thought that they could remain as they were under Take-Two. That was the case, for a while. I'm just upset that their fears when they sealed the deal were eventually realized.
Anyway, if you really liked RR3 for its economics, you might prefer RR2. It is considered to be more robust of an economics game.