I'm still working out exactly how the experience points bonus works with your collection. I'd like to have the rules spelled out exactly so I know what to try and get scanned at least, even if I never intend to use it so that I can maximize my bonuses.
So far, I've just figured out the following:
Power discs--
For 2.0 power discs, 2-9 will get you 0.5% per variety of disc. 10-14 will add 1%, and 15+ will add 1.5%. (Edited due to data from megadrive2.)
1.0 power discs will not add to your bonus at all.
Figures--
This one I'm still working out. 2.0 characters give 3% per figure. I'm not sure how the bonus will work with duplicates just yet, but I can take an educated guess.
1.0 characters give a 1% bonus per figure. Not sure if having duplicates beyond 2 will give further bonuses, but I will be testing it tonight (since I have 2x 3DS Toy Box Challenge starter packs in addition to my 1.0 Xbox 360 starter pack.
I'm sure this doesn't really come up THAT often... but how far do you go in your collections? Would you go out and get more extras for every character, or would you just try to find some RL friends & relatives to just scan in their figures to pump your bonus up? This duplicates bonus is actually making me consider trying to track down some of the more limited-edition-type stuff, like Jack in the special display case (but D23 Mickey is a little too rich for my blood. Plus, I only coughed up for the Frost Beast display without getting the CE since I don't have a PS3/PS4.)