open source programs can't really be bought. just use them and change them to your needs. a problem with wings3d is that it is written in erlang which is a very exotic programming language. the customizable blender 2.5 would be a much better fit for gamestudio but i don't think conitec is interested officially going with blender. WED and MED are the studio part of gamestudio and a selling point even if they are a bit crappy. replacing them with an open source solution would be a bit hard to market i guess.
a problem with wings3d is that it is written in erlang which is a very exotic programming language. the customizable blender 2.5 would be a much better fit for gamestudio but i don't think conitec is interested officially going with blender. WED and MED are the studio part of gamestudio and a selling point even if they are a bit crappy. 
