Im pretty sure there are many indie games made now using old software, outdated even, so I wouldnt mind finishing my game in gamestudio, knowing full well I wont really get any support from the company, outside of great forum members here.

Honestly, its much better to move onto Unity when you get a chance. Dont worry about the growing pains. There is a thriving community, coming up with such clever things, as well as an active company. Seeing the company host a unity only conference, seeing all these amazing games made with that engine, is such a nice feeling, and you can have it too!