Of course they care about sales, they wouldn't promote at all if they didn't care at all, but they aren't obsessed with keeping a #1 streak or breaking records.
Like for example Kumi keeps releasing her albums on the slowest weeks of the year to get #1, I don't think we will see that from Ayu, at least I hope we won't.
Ayu's popularity in digital sales got a great boost last year with ridiculous comeback of A BEST with its cheap price.
Ayu is currently #1 and #2 on Recochoku albums, A complete also jumped back up to #49.
