I particularly like that R2-D2 has moving parts. Its head can rotate 360 degrees, a third leg can be attached to put R2-D2 in a resting position, and it comes with numerous attachable tools ...
So if you’d like to add more Luke and R2-D2 to your life, head to Disney during the Season of the Force! Who knows when his next visit will be. Hopefully this won’t be your only chance.