I made an assumption of an average store because you didn't specify one until now, that's not unreasonable. Average sales multiplied by total number of stores will give you a total sales estimate. I simply made the best estimate I could with the data presented. If you had provided better data (like a location) perhaps I could have provided a better estimate.
You said I ignored other stores, yet I specifically mentioned that my estimate excluded them as well as online. If I were to include them, the sales figures would be larger, and make your claims less believable, not more. My point was that the numbers seemed too big, even before considering all the other retail channels.
I completely agree that California area stores would get more shipments, although your figures are still on the unbelievable side without some sort of evidence presented. What method did you use to verify shipment figures for example?
Considering my experience with the 11 Apple Stores nearest me doesn't reflect your experience with your "local" store, no it is not easy to verify your claim, especially when you didn't list a location or area in your original post. I mentioned km, so can at least guess I'm not in the US (Canada). You didn't even provide that much. If you make outrageous claims or even claims that could seem outrageous, back it with information.