I would asume that SB will be supporting the RioCar\Empeg's for some time to come (hopefully) so I guess it might not make sense to ask this, But I might as well ask just the same.
Some items I can see wanting to stock up on...
Sled connectors, Buttons, Volume knobs, Face plates, Handles to name a few.

I really want some more buttons so I can create more versions of lighted buttons.

Seeing as the player is now EOL and the chance of anyone else making such an awesome machine is about as good as Microsoft ever using fair buisness practices, I need to figure out how to make my two units last forever.