I think the problem is more one of personal skill with a program. Someone who has mastered 3dsMAX is not going to be really happy with MED. But if one really got comfortable with MED, the learning curve for another modeler may be so steep that it is easier to stay with what one knows. All programs mentioned are a lot easier than modeling with a text file, and some of us have even done that in the old days.
I think it is safe to say that we see a talented individual here who is doing great work.
Best regards,