For good reason.
I give up. What's the reason?
My boss has one of the mid 70s AMF Harleys. Looks like a cafe to me.
You don't see very many because... the AMF Harleys were not known for hanging together. And just like our CB750 in the 1970s, they tended to get modified into awful things.
And they didn't sell very many, as most of the factory cafes from that era missed the mark and didn't sell well, even the jap stuff.
As far as looking like a cafe, that's as far as that went as well. Performance was lacking.
I am the epitome of understatement.