Only at WDW now...
$8 per day to rent, and they will apply your rental fee to the purchase price if you decide to buy...
Some of the jokes he has told at home we heard in the parks, some we didn't. He may not have a "million of 'em", but he might have a hundred or more. (note, he doesn't vibrate at home, since there is nothing to send him signals....you just press his hands or tummy)
You "might" be able to get them to put it in your room before you arrive, if you make a special request... I know they will deliever a stuffed animal and balloon if you want one delivered for a birthday, so they might also deliver a Pal Mickey... Wouldn't hurt to ask.
He clips onto either your belt or fanny back, which makes him pretty easy to carry around...
Word of caution... keep track of him, especially if you let the kids carry him around... It can be easy to just put him down in a store (especially for kids) and forget about him. That could be 50 bucks down the drain...
I'm hoping for a "Pal Donald".... one of the games could just be trying to figure out what the heck he's talking about!