Pi Day sale at Microsoft: Save up to $314 or 31.4% on laptops, tablets, headphones and more

Ian Knighton/CNET
Pi Day is traditionally known for inexpensive pizza and science-themed fruit pies. But tech vendors are starting to flex their sales muscles at this time of year now as well. What do gadgets have to do with Pi? Um, math, I suppose? Nonethel… [+1135 chars]Source