These lenses may be in stock, but they were completely removed online and in no way can they be ordered. The lenses that have been available before January but are no longer available are as follows:
All Sigma lenses, both Nikon and Canon mounts, are gone as well.
I am not sure what to make out of this report (from someone that works for Best Buy) – maybe they will wait for the price increase, maybe there are new lenses coming, or maybe they will just stop selling Nikon lenses.