I had a chance to buy a Cameo back in the mid '80s. They were asking 5k but it was pretty rusty and I really didn't care for that model anyway so I declined. In hindsight, it would have been a good investment, but I didn't have the room or desire to store it for 30-40 years.
I really like the look of the '57 grill. Kinda reminds me of a catfish mouth.
John