Desktop versus Laptop

Thank you for your reactions to this thread. It looks like the voting is fairly even so I'm back to square one on this dilemma. My wife is pushing for a laptop and she is willing to shoulder the excess cost (over the price of the desktop). Now I am inclined to follow her wishes. But my worry is the validity of my old programs particularly the video editor and the midi composer (for musical compositions). Someone in the house suggested that I retain the old desktop and use the new laptop as my home base for computer works since I can bring it to the office and to anywhere I wish.

But that laptop is not yet final though.