Not sure what they look like now, but we have a Pal Mickey from 9/06. My kids were a bit too little to enjoy him then (2.5 and 1.5), but when we go in Oct we plan to bring him again with us (I understand that he will still work, provided we turn him on before we enter the park for the day).
I put new batteries in him the other day and he still tells jokes and plays games. In hte park he can tell you what line might be short, where a chara might be, or interesting facts. Is he worth the $65...if you plan on using him again sure! If you really hate it, you can sell him in ebay for a chunk less than what you paid to recoop some of the $$!