Carshalton, that's giving an answer with another question.
But yeah I stopped playing RM1 because it's server was out due to the start of RM2.
The gap is massive, really massive. From mostly text based to flash driven.
But still the question is legal in my opinion. The game is on a dead-end track. Probably, we will have level 22-25 buildings soon and other improvement with minor influence on the game itself.
Nevertheless much more user friendly and addictive then RM1