Moving 7 figures of hardware per year is very hard, yet.
Moving seven figures of hardware per week even more so, even at peak in a seasonal business.
On the other hand...
27+ million for the year, with Amazon still accounting for around 50% of the worldwide total, means they've been averaging around a million a month since last year.
That doesn't sound like luck at all.
More like a solid business model tapping a mainstream market.