Yes, you can still buy Great Plains accounting software; it just has a different name.
Change is hard. People who “grew up” in finance departments using Great Plains software still call the software “Great Plains” even though the name officially changed to Microsoft Dynamics GP over a decade ago. (Great Plains Historical Timeline).
In all honesty, I still call it Great Plains too, even though technically I know I shouldn’t.
Here are a few milestones in the software’s name:
Great Plains software released Dynamics 1.0 in February 1993.
Microsoft purchased Great Plains in 2001 for over $1 billion
The name was changed to Microsoft Business Solutions - Great Plains in 2003
Then the current name was introduced as Microsoft Dynamics GP in 2005
The software has certainly improved over the years, but the core features users loved about Great Plains software are still the same. Dynamics GP is still a stable, core financial system that just works.