SAVE OVER $20: As of May 11, the Kindle Paperwhite 16GB is on sale for $134.99 at Amazon. This is $25 off its list price of $159.99. $134.99 at Amazon $159.99 Save $25 If you've had your eye on the Kindle Paperwhite 16GB , time is running out to score a $25 discount at Amazon . It's on sale for $134.99 at Amazon, but this offer only lasts through May 11. The Kindle Paperwhite 16GB is usually listed for $159.99. It's a Kindle model we think very highly of — landing on our list of the best Kindles as the best overall pick — so it's well worth the investment (especially at this new low price) Mashable Deals By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use . And what is it about the Kindle Paperwhite that made it stand out as the best overall pick?…