Roel,
Also almost all of the PSR line comes without the adapters.. You have to buy them separate in what they like to call "The Survival Pack". Now if that isn't just a waste of money and time.. Anyone actually use those lame headphones that are included in the pack? You can't even buy the digital drum machines without having to buy the power supply separate.. Even the DJX-IIB doesn't come with the adapter... Everyone is doing it now.. Even the drum machine I'm buying from Zoom doesn't come with the power supply... If you noticed most stuff today that also can run on batteries doesn't come with the power supply.. I guess the company feels they can cheese you better this way. I don't understand the deal with the PSR-2000 though.. From what I understand the PSR-2000 does not operate on batteries, so why would Yamaha sell the freakin thing without the adapter, and then have the nerve to ask $75.00 for it.....?????