When I bought mine they figured out why they're not showing in the system. Corporate didn't "release" the units to the store yet. They're not bad SKUs, its just best buy has a "street date" in the system and on that date, the corporate retail team has to go in and unlock the bar code to be able to scan\sell. For me, they called into the store support team and they added a ticket to unlock the SKUs tonight, so there won't be issues selling them tomorrow, but for now the store support team had them just manually key the SKU. They're not selling demo units, they're just not used to having products so quick after launch, LOL
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I just got my Macbook setup, and I absolutely love it. The size is perfect, the screen is perfect, I love the resolution, glad I was able to get the 1.2 as it runs well, not sure what I'll do with a 512gb SSD tho but for only $140 more than i was going to spend on the base model, worth it I'd say. I'll get half that back when I resell next year.
Luckily the local Apple store had the USBC to USBA so I was able to do a backup of my Air and restore it to my MB, otherwise I'd have been SOL. Have the USB C to AV adaptor on order (2-3 weeks), so will have to wait to be able to charge and usb at the same time, but no biggie. I'm just in love with the trackpad and the keys. Feels so much more modern than the old keyboards. On my iMac it's almost painful to type on the old keys, LOL. Reminds me of when I went from a real keyboard to a chicklet keyboard. Progress is great.
As a side note, mine came with 10.10.2 out of the box, so I did have to update to 10.10.3.