Jaguar

"Do the math."

Sure, the Jaguar is not the best console of its time. You might be better off getting a 3DO, N64, or PSX. Plus the controller is garbage (the 6-button "ProController" is a bit better), and the Jaguar CD add-on should come with a guarantee that it will not work... so we're not saying you should go get a Jaguar, BUT if you do have one, there are some very good games that might make it worth keeping.

The Jaguar CD
"It's a digital jungle out there."

The Atari Jaguar CD is an add-on for the Jaguar. It was too little, too late for it to do anything for the doomed system and its doomed maker. Little over a dozen games were released for it, most of them also available on other systems. Notorious for its frailty, good luck finding one in working condition. So, not really worth getting.