The unfortunate truth in mobile is that it's not uncommon for handheld devices to sport non-upgradeable internal storage, a trait that's embraced by Apple
and seems to be catching on with low-cost Android
devices. To wit, neither Amazon's
Kindle Fire or Google's
Asus-built Nexus 7 tablet sport expandable storage options, which means it's imperative to choose the proper amount at the outset. Nexus 7 buyers are apparently ahead of the curve in this regard and have gobbled up Google's entire stock of 16GB Nexus 7 tablets.
The 16GB model, which sells for $249 on Google Play, is currently sold out without an ETA on when more inventory will be available. Google simply slapped a "Coming Soon" tag on the 16GB Nexus 7's product page, along with an email notification box for potential buyers who want to be alerted the moment more 16GB models are in stock.
In the meantime, the 8GB Nexus 7 is still in stock, with new orders being delivered within 3-5 business days, according to Google Play's listing. Without a microSD card slot, however, it's easy to see why buyers are clamoring for twice the storage at a $50 premium.