The Azpen A700 is the most basic of 7" Android tablets. With a single core CPU, VGA camera, and 4GB of Flash storage, this tablet is a steal at $40. (No, seriously, I would deeply appreciate it if someone would steal the one I have.)
The A700 originally shipped about a month ago. It runs Android 4.2 on a 1.2 GHz CPU with 512MB RAM, Wifi, and a microSD card slot. It also has a speaker, microphone, and a g-sensor. Weight is estimated at .77 lbs, and battery life is specced at 4 hours.
There's really not much to read in the Microcenter listing, but early user reports confirm that this tablet has Google Play as well as the rest of the standard Google apps. My source also noted that this is a rather ugly and bulky tablet which seems to be convinced that it is a smartphone. That same early user says that the 7" screen isn't too awful given the price and resolution (800 x 480).
The A700 is only available in Microcenter stores, and that's going to make it rather hard to acquire. But if you do get one you might want to install a replacement firmware. This tablet is the subject of a thread at XDA Forums where it has already been rooted.
So should you get this tablet?
I wouldn't recommend it, but if you have to get a tablet in this price range then the A700 is definitely a better value than the Ubislate 7Ci. The A700 is sold by a retailer that has a not unreasonable return policy, and it has Google Play. That counts for a lot, trust me, because it makes the tablet more useful and because says that the A700 met a certain minimum standard in order to get Google Play certification. The Ubislate 7Ci did not, so I would be willing to bet it is inferior.
And if you don't live within a reasonable driving distance of a Microcenter store, you might also want to look at the $50 tablet that Chris meadows found at Office Depot and wrote about on Teleread.