A lesson from Y2K?
When the Y2K panic hit it was because many companies were still using old Cobal and Fortran programs from 20 years ago to run their businesses. Why go to the expense of upgrading something that was working? Change only came because economic panic forced them to review, repair and upgrade their infrastructure. I expect a steady transition away from old hardware onto the newest platform, only if the newest platform is not radically different from the old.