Well I should've explained it more. What I quoted was from an ongoing conversation with him on the pros and cons on the rMB and MBA.
Still my point was that different people have different needs. A blanket statement that the rMB is "not worth it" vs a MBA is myopic and ignorant.
I once spent an hour with one of the users I support at my firm as he went back and forth between two different laptop choices we were giving him, and it was over 3/4 of a pound difference between the two. He wanted the lightest laptop he could get his hands on. Some people, once they have used a retina display simply cannot stand to use a standard display again.
Apple clearly saw enough return on this laptop to update it a year after introducing it. If not, they would have altered it or discontinued it. So there is a market out there for it.