Pretty sure the Nexus 7 was sold out every where when it came.
But I can see you are a biased fanboy. So there's no point of discussion.
I see. I am a fanboy so any facts MUST be in favor of Android because they have to?
I can tell you, and you can simply check that anywhere, that the Nexus is far from being "sold out", you can very easy buy it anywhere. Besides, what does sold out mean? How many units did they bring to the market? Why is Google not publishing the numbers? Why is nobody publishing numbers, but Apple?
All you hear are guesses from "experts" third party rumors how very successfull a tablet was. No proof. No hard numbers. You hear Amazon bragging that they had 27% Marketshare at one partikular time or day with there original kindle fire in the US, that would have translated into more kindle fires sold then the manufacturer ever could have produced. I see iPads everywhere, every day, I never seen a kindle fire in the wild.
I did see a nexus7, because I have one and it is working very well for what it is and what you can do with it. But it is in no way a competition to the iPad. None at all. And the kindle need good will and a lot of fantasy to even be rated in the same category as a tablet, because it is a complete different category as a dedicated Amazon content device.
I can see the nexus being bought for special use, lets say a dedicated sat nav that allowes a quick web search in the car or entertains the kids for an hour. If there is a $99 Model coming, it will be a impuls buy at the check out and one could get it as a universal remote or little game boy.
Still no competition for the iPad.
At the end of the day, the popularity of any specific device has to translate into earnings or winnings for the company. That is until now not happening with the kindle or the nexus. There is only one company that makes money with tablets, Apple. There are two companies that make money with phones, Apple and Samsung. Samsung thru mass, they just put so many phones out and hope, that combined they make some profit and it works, they are earning money, Apple with the most sold phone ever of any manufacturer with massive margins.
All others do earn nothing or pay to sell there handsets. In the tablet market only Apple makes money, even Samsung with there expensive offerings is not making any, because they sell so little.
As a share holder I am interested in earnings and if I have 80% of the winnings of ALL sold tablets with only 20% market share, I am happy. Every tablet of the competition sold at a loss or without profit brings my earnings up.
Apple sells every quarter more units and everyone knows, they making money with every sold device. At the moment there is nobody that can compete, no matter how many devices they flood the market with.