Would you work on AutoCAD for whole life? Or you have mind to do business?

As I have changed industries .. I had to change CAD programs and systems....

Government and Pharma giants usually use Microstation... AutoCAD occasionally ... civil engineering and architectural firms wanted AutoCAD... firms like Gulfstream, VW, Daimler  prefer CATIA ... one Corp has a nix of AutoCad and SolidWorks ... and the other a mix of AutoCAD2D and Inventor for modeling...

You go with what is needed at your work place...  yes I have experience with4 Cad programs and started to learn Inventor; 

which has one plus .. I am diverse, however I never will know any of the programs to its fullest extend as some one who is working its entire live with one program  

For me , Acad means life I am spending a major time with it , drafting and designing and planning for my future house ------etc