and that's pretty much the reason why my wife and I finally bought a 3DS XL awhile back. She loved the size of the unit and how it plays her old DS titles so very well. She got upset over Donkey Kong Country Returns though when seh thoguht she had to play the game on the new disc controller.
She also loved how our 64GB SD card was able to work on it though we've found it hard in trying to buy any other games for the system given their pricepoint in both retail and on their store.
looking forward to playing the demos though.