I'd say pretty unbeatable at that new low price -- though the reason for the drop is quite possibly because this bottom-of-the-range model has long been superseded elsewhere in the world by at least half a dozen other (but more expensive) versions. Not to mention the growing 'netbook' competition from pretty much every major manufacturer.
For what it is the basic EeePC is absolutely great -- as a second and ultraportable travel machine, for example. Just don't envisage working on it all day or as your main machine if you do lots of computing, as the screen and cramped keyboard will drive you nuts! You also get a flavour of Linux at that price and not XP, which again is fine if it does what you want. But like most users you should at least factor a flash drive (or memory card) into your budget if you want to do more than just the odd e-mail or letter.
You also need to be aware it does not take a PC-Card or PC Express modem for your 3G connectivity -- only a USB dongle. And of course no optical drive, so you need either a portable disc or flash drive or external HDD if you want to move data or applications across.
Bottom line: at just over R2K, what's not to like, as long as you are aware of its limitations! Go for it!