As of today (April 13, 2014), you can still find MalwareBytes Anti-Malware Pro
Malwarebytes has just released their new MalwareBytes Anti-Malware Premium, a major upgrade to its MalwareBytes Anti-Malware Pro program.
The user interface is much improved and more easily understandable (and more modern — but not "Modern" like Windows 8, thank goodness!).
I was very pleased to see that this was a free upgrade from MalwareBytes Anti-Malware Pro, and that my "Pro" lifetime license continues to apply to it. Otherwise, the new Premium version is now an annual subscription product, as are most security programs.
As of today (April 5, 2014), this vendor still has copies of MalwareBytes Anti-Malware Pro