Its bad when a device that was never supposed to run Android (the iPhone) can be hacked to run it better than a device that was designed for it.
The sorts of electronics they sell there are overpriced and low-quality unless they're actual name-brand items. An LED nightlight sold there is likely to be weak, and badly designed, and overpriced even at $5.
If I saw a $99 Android tablet at Walgreens, I would assume that it would be better to simply burn the $99 - at least then I wouldn't have a useless device to store or dispose of.
(I was just at a Walgreens, and they actually had some Wii units for sale. I wouldn't buy one there, but I assume there's nothing wrong with them.)
I don't know that Walgreens has that much of a reputation, but I think of them mostly as a drugstore, even though they carry a lot of random stuff. They are a fairly large chain with stores all over the country.
That said, they're not really somewhere you go shopping for high class goods or electronics.
nowadays they sell pretty much everything, even prescription medicine in a distant corner :)
most of what they sell is cheap snacks, 99cents products and trinkets.
also walgreens and other drugstores here all have their own brand of copied medicine "walgreens product X. compare to Brand Y product X" on the labels
If Android using the Apache license means that vendors only have to provide the (Google) source they started from and not for the final result, you basically can't hack what you got, but have to deal with code that was never customized for the device you've got. In effect the source was open for the vendor, but it isn't for you. So much for fixing bugs in what you get...