When did I ever say that Cine lenses were a scam???
I believe that was Lee that said that. I highly disagree with his statement.
I own both the zeiss zf primes and a set of the zeiss compact primes. I much prefer working with the cp's and so does my AC. The beauty of this camera is the fact that it will take pretty much any lens out there and I'll probably usually use my cp's but if I need a macro, I'll use my zeiss 100mm nikon mount or a long lens, then the nikon 300/2.8 ais. For a short zoom ( or rather variable prime) I'll use my nikon 17-35/2.8 which is a fantastic lens but not one that you want to follow focus with.
The problem with this camera is that it'll take any lens out there so now I'm looking at ebay and thinking that it would be nice to have some leicas to play with. The lens obsession never stops.
In reply to the original question, the issue with cinema zooms is that most of them are big and heavy. You don't get away with just buying the lens, you then have to add lens support, a sliding baseplate, rods and usually a 6x6 mattebox which is why I would hold out for a used red 17-50.