+ 1 on you get what you pay for
but then for 285$ you will get a crappy netbook witch I don't recommend because they are usually slow and made cheap.
But if your lucky enough you can get descent Asus laptop for about 400 - 500 $. Some model has 2 year warranty and they last longer than any other brand on the market.
If she don't want to listens to people tips: tell her to buy whatever they want and regret it later
That's what I do with my costumers.