And most of those good ones do involve Toy Story 2. Meanwhile I'm stuck thinking how much better the movies would be if Michael Caine was the voice of Rex.
He'd be a good Professor Farnsworth in Futurama. Think about it for a second. Calmly, smoothly saying "Good news, everyone... I've taught the toaster how to feel love."
You could mentally place him in just about any video work of fiction and it somehow improves. Asking why he isn't in something is dangerous, you might as well ask why he isn't in everything.