There are TRU exclusive Power discs and TRON modifiers are part of them? Damn. Looks like I'm going to TRU to use the 20% coupon (see if I can preorder today so I can also get the figure and discs deal, hopefully they can stack. Pre-order doesn't require full deposit so hopefully you can add the coupon when paying in full), buying a bunch of Power Discs (B1G1 for $1 at TRU), Buying some figures, maybe a 3 pack (coupon again for separate transaction), going to target to get a playset.
This is the start of an expensive habit.