I am inclined to believe Gruber. If he stakes his reputation (very important to his massively inflated ego) on a specific number, it means he's satisfied it's correct, and that's a pretty strong vote in my book. Could be wrong of course but in the absence of hard evidence I go by gut & human nature...
And I am pretty sure if someone told me that they had sold 503 phones, I would have asked some more questions.
"They only sold 503 phones on the weekend"
"What, for the enture country"
"Oh no, just at this one store in Arizona, and they were only open for 1 hour, and they ran out of stock".
"Oh, not so bad then"
> I can’t vouch for the following, but a well-placed little birdie told me over the weekend that they sold a grand total of 503 Kins before they pulled the plug. 503.
That phrasing does not put absolute confidence in the number. It is very possible he was misinformed. But 8000 (as pointed out, a probably over inflated number) is still pathetic.
Still, Gruber is a rumor spreader, not a trusted source on anything.