At this rate, it feels like you won't be able to buy anything from the Play Store in the near future. Both storage capacities of the Nexus 4 sold out in record time. The HSPA+ version of the Nexus 7 lasted 36 hours longer than the Nexus 4, but sold out last night. The 32GB version of the Nexus 10 sold out yesterday as well, and now the 16GB Nexus 10 is joining it.
The last things you can buy now are the 16 and 32GB Nexus 7, and the new $199 Acer Chromebook. Everything else in the Google hardware department is sold out. Hopefully Google can get things back in order and get devices shipping again soon.
Source: Google Play Store