I got the whole set for Christmas and have only watched the first two videos. By the end of the summer, I'll probably start trying inverts or 360s so will need either the base inverts or spinning Disc. Its nice to know I have them when I need them, but wont need them for a while.
If money is tight, you will be fine with the one you bought, but if you can I would say just bite the bullet and go ahead and get the whole thing.
(Message edited by malibu73 on June 07, 2007)