diff --git a/pep-3129.txt b/pep-3129.txt
index e996512cd..874ebd1b3 100644
--- a/pep-3129.txt
+++ b/pep-3129.txt
@@ -33,10 +33,12 @@ The motivating use-case was to make certain constructs more easily
 expressed and less reliant on implementation details of the CPython
 interpreter.  While it is possible to express class decorator-like
 functionality using metaclasses, the results are generally
-unpleasant and the implementation highly fragile [#motivation]_.  The
-fact that large-scale Python projects like Zope were going through
-these wild contortions to achieve something like class decorators won
-over the BDFL.
+unpleasant and the implementation highly fragile [#motivation]_.  In
+addition, metaclasses are inherited, whereas class decorators are not,
+making metaclasses unsuitable for some, single class-specific uses of
+class decorators. The fact that large-scale Python projects like Zope
+were going through these wild contortions to achieve something like
+class decorators won over the BDFL.
 
 
 Semantics