Whether a hot product, a lousy product, or an average product, the act of retail store inventory replenishment is a human exercise and subject to the same emotional and irrational process one goes through when deciding on what type of latte to purchase in the morning.
RMB History Lesson:
March 2015 - The RMB is announced.
April 2015 - The RMB trickles out to retailers.
May 2015 - The RMB begins to ship in limited sizes/colors.
August 2015 - At Back To School, the RMB is finally in stock in all stores.
In May of last year, I myself looked high and low for a Space Grey 1.2GHz 512GB RMB right here in New York City and I could not find one in 15 NY Metro Apple Stores nor online nor on eBay or anywhere else. I finally found 1 unit, just 1, in an Apple specialty store in Manhattan and finally was able to get my hands on one after weeks of looking. The Apple Watch is what Apple was focused on, the RMB was a passenger.
The point? The RMB isn't "a year old notebook". The supply chain was only fully stocked by late August/early September at the earliest. I know. I kept going back to Apple Stores to check out the Watch and paid close attention to the lack of availability of the RMB.
The RMB is 6 months old, maybe 7. Apple isn't going to touch it, it's a baby, it's a newborn. They'll focus on the Pro and Air revamp's, there's real money to be made there.
BJ