I've hit the same predicament, pretty much, as the only battles I have left to do are Ice Titan, Kurt Zisa, Phantom, and Sephiroth (bah...). I don't have anything to spend it on. I have the gummi collection (for getting 99 Dalmatians), so I can't even buy anymore. And by the way, Chibi, you're somewhat knew here, I think, so make sure not to believe anything Del says. Make that anything ANYONE says. Including me. In fact, don't believe these last few sentences.

While you can't buy the palace in Agrabah, you can buy the Gizmo Shop and make millions and millions of...gizmos.