It was a good move by Rockstar games to release the PC version. I have played the game and finished it and I can say it was wonderful even though it was quite short in terms of the number of missions. I am looking forward to GTA 5 on pc as well.
Of course it was a good move, because if they will release it on the pc, then the more profit they will get. I just noticed that the pc version has always been their last priority.