I agree that notebooks are pretty much useless; unless you want to do the VERY very basics, then you'll need a better computer. You might as well get a £300 laptop which will be basic, but a million times better than a crappy netbook. Everybody I know who has bought a netbook has ended up selling it and then buying a basic laptop.
The problem I have with sit-up selling electrical items like this one, is that is often seems like its the blind selling to the blind. Half the time it seems the presenters don't really understand what they're selling/what information to give, and I would imagine a lot of people don't really know what they're buying.
A lot of the presenters come up with all generic stuff/basic errors; i.e. calling it a 'laptop', implying its as fast a mac, saying its like an Ipad, saying it can open 'Word' (its not - it's not even Microsoft related). I'm not sure whether the presenters know these errors, or they're just ignorant.
Either way, whenever sit-up are selling electrical tat you can guarantee the presenters are going to babble on and get most of it wrong.