Hi! I'm a game designer, academic and author of the "The Golden Age of Video Games" (with a foreword by Ted Dabney!) and of On the Way to Fun: an emotion based approach to successful game design" both published by AKPeters/CRC Press. Most importantly, though, and thanks to AtariAge.com which revamped a never extinguished fire, I started collecting classic games focusing on the Intellivision and Atari VCS!
The Playcable is really a museum piece!
The Shockvision make me very curious (the more you know about the Inty the more you realize there is still so much to learn and discover about this amazing machine!)
And the French Zaxxon is the same version I just bought: very glad I got a worthy C-Mart grade specimen!
Interesting find: CIB European Zaxxon still at a very low price: eBay Auction -- Item Number: 380631498304 but box so-so only.
I recently bought one so my Zaxxon thirst is quenched: a French version in very good condition, though for an "ok" price only. Still looking for a Worm Whomper box, though. That's my remaining Inty main objective for this year (I managed to fulfill all the others already! )