I guess that makes sense, convertibles being more desirable.
The 1972 is a HO car though, and there were fewer than that of even the 71 convt.
However, the 72 has everything original on it. The dashpad was cherry when i found it! Still supple i couldnt believe it. All the KR wheels were there. The orginal carb was there. Frame even has the original stamping.
71 has orginal drive train but has had some work done on it throughout its existance. Hood is a nos one (more valuable? lighter and more durable deff) wheels are questionable..not sure if it had JA or JT (have a set of JA's).
So: 1971 GTO 400 Convtible VS. 1972 GTO 455 HO WW5