If it's false, then my buddy at the dc who usually checks these things for me made those numbers up out of thin air, and I had him double check for me to make sure he didn't have the SKUs mixed up. He's been helping me keep track of things like gaming hardware and amiibo for years, from even back when I actually worked at Nintendo (sometimes it was easier to have people who work for the retailers track distribution than it was to find out from Nintendo themselves).
Now, maybe that's only part of the shipment and a large number of grey units are also on the way, but it seems a little late for that. Maybe Nintendo intends to ship large numbers of grey units via UPS direct to stores a day or two before... this happens occasionally with Nintendo, they love their last-minute UPS shipments, although it seems weird to spend more money that way rather than just pumping them through Best Buy's internal warehouse distribution system.
I haven't done a whole lot of reading the thread, I had my preorder ages ago so it does my no real good to track them. I just wanted to say what I heard. It did strike me as potentially odd that there would be so many of the neon and not the grey, but that's what he said, so shrugs for hugs.
Well, I've got pretty specific SKU counts. 207 grey vs 4380 neon.
EDIT: I'll probably try tomorrow to personally confirm that. I can go into either store and have their warehouse employees punch up their inventory system for me pretty easily (benefits of being the old "Nintendo guy").