Perpetual Licenses No Longer Available After January 1, 2018
For those who haven't seen it yet, PTC has officially announced that perpetual licenses will no longer be available for purchase starting January 1, 2018.
"...effective January 1, 2018, new software licenses for its core solutions and ThingWorx platform will be available only by subscription in the Americas and Western Europe. Customers in these regions may continue to use their existing perpetual licenses and renew support on active licenses."
Yes, this includes Creo, Windchill, etc. The only exception is Kepware.
Additional information available here:

