Re: What about the no-names?
Most of the no-name tablets are rubbish, though there are some real gems out there. There are two main chinese chipsets powering these things, the Allwinner A10 (ARM Cortex A8 single core ~1.2ghz + Mali 400MP GPU) and the Rockchip RK3066 (ARM Cortex A9 dual core ~1.6ghz + Mali 400MP quad core GPU). Once you know which chipset a no-name tablet is based on you will get a very good idea of its performance and capabilities.
Over here in Portugal the shops are full of sub-100eur 7" Allwinner A10 tablets and they nearly all have 800x600 LCDs with poor viewing angles and 8gb storage. I gave one to my wife, and for basic surfing and ereading its OK, handles virtually any known video file and even makes a fair stab at games.
I spent a little more on mine (139eur) and got a BQ Maxwell Plus with an 1024x600 IPS panel and the RK3066 chipset. I also have one of these and it smokes the A10-based tablet completely for any use case.
Bought both for the price of a Nexus 7 over here too :-)