I'm kinda sad that all that rin does while singing is standing , they could have given her a great dance performance, but no 
Better than how they did Kimi wa Melody. :T (was brought up in thread some pages ago, but tl;dr it didn't take the solo-to-group conversion well, with obvious shortcuts taken and fairly lazy movement)
Inactive as it may be, this video seems sort of like a test, like with Ranko from the first catalog (since she had her mic-wand). I do appreciate that they're trying to incorporate more aspects into a performance beyond dancing. Some songs don't lend themselves well to elaborate dance setups, and it just adds, well, more.
The first two catalogs are now on sale until the next catalog hits on February 25.
Were discounts uniform, or just per-item? If not uniform what's the range?