Yes, the Toshiba Satellite L305-S5921 is cheap. But it doesn't have dedicated graphics. And the 15.4" notebook is quite bulky. Looking through the specs made me realize, are those GPU-free desktop replacements now obsolete? I mean, if all you need is to surf and type out reports, a netbook would do fine right?
I'd rather buy a big laptop if it had powerful specs, especially since those extremely portable netbooks are priced similarly to laptops like the L305-S5921—but essentially do the same within a more portable package. Agree?
They have a niche for the people that like them. For example, imagine your grandmother trying to use a 7" or 9" screen. Some people like the screen size. Also, some netbooks may not have some capabilities that 15.4" notebooks do - watch DVDs/Blu-ray, output to an external monitor, output 5.1 audio, optical drives, etc. Some people may just want the bigger screen - it shows more things, and you can do work faster with less scrolling.
^+1 Great points frozenlead! My mom recently wanted to buy a 17" desktop, even though I kept on telling her those kind of laptops are hernia-inducing. But she'd use it to watch DVDs, and really didn't like the small screen of my XPS. And personally, if those large so-called desktop replacements weren't so heavy, I'd get them for their large screens.