For the application we were considering and the algorithms we liked from CGAL, exact computation wasn't really an issue. I agree 25K is peanuts if the choice is

For the application we were considering and the algorithms we liked from CGAL, exact computation wasn't really an issue. I agree 25K is peanuts if the choice is between developing yourself from scratch or licensing something from CGAL. But in our case the choice was between CGAL, using a simpler and possibly less advanced/less accurate solution, or using an alternative LGPL package. Especially considering the many dependencies most CGAL packages have on other packages, the value proposition for just using a small part of the library for a single algorithm quickly becomes a hard sell...