Originally Posted by -JKR-
Kick-Ass was an independent production (fully financed by Matthew Vaughn, with help from Brad Pitt's Plan B) and cost only $30 million. It didn't make much money, but turned out to be profitable anyway (also thanks to solid numbers from the home video market). This is an entirely diffrent beast.
If FOX is willing to spend $50 million for their movie then they would be fine releasing countless X-Men spin-offs.