Amazon's Kindle Paperwhite drops to all-time low price of $71 in one-day sale

Now might be a good time to buy an e-reader for school -- or that end-of-summer vacation. Amazon has cut the price of the ad-supported 8GB Kindle Paperwhite to an all-time low of $71 in a one-day-only sale, well below the official $130 sticker. That's lower than what we saw just two weeks earlier, and makes it an easy choice compared to the base Kindle (which isn't discounted as we write this). You can buy the ad-free and 32GB variants with substantial discounts, too. Buy Kindle Paperwhite on Am...