Would you buy this laptop for $89?

Maybe

That is an extraordinarily limited machine… Web surfing and document work are going to push it's limits.

Having said that, if that is all you need the machine to do, and you can work with the very, very limited storage, sure. This is similar to my Surface (original model, still going strong) in that it doesn't have much in the way of horsepower, but it does the limited things I need it to do well enough.