Re: Not surprising
My company (large american corp, 70,000+ employees Word wide), seems to have a more pragmatic view on Desktop migration now.
Previously they supported just one desktop OS at a time, and migrated everyone on mass. Windows XP to 7 etc. But this was a complete nightmare, needing a lot of hardware upgrades (PCs, printers etc.), software /app updates, as well as the OS itself.
Since then, they had a change of tact. Rather than support one OS at a time, and then migrating to the next OS on mass, they just support multiple versions of Windows. So we current have Win 7 & 8.1 systems in circulation.
The company creates a new SOE images of the OS as the new OS comes out (typically having a release image ready about 4-6 months after the OS version was released).
Once a new SOE is released, then all new builds, or re-builds are done with the latest SOE image. But no existing, functional devises are upgraded unless something goes wrong, or there is a specific business need to do so.
All PC's have a ~4-5 year life span, and their replacements are always on a new image.
So now rather than having to manage a mass migration, it's just a continuous upgrade process, at a manageable level.