This is the fourth year Microsoft has celebrated the mathematical constant of pi with a sale, according to The Verge. The price cuts include PCs from Dell, Lenovo, HP, MSI, Asus, Acer and Alienware with prices starting at, you guessed it, $314. The deepest discounts appear to be on models using seventh-generation Intel processors, but models with current eighth-gen Intel CPUs are discounted, too, such as Dell's newest XPS 13 ultraportable.
Microsoft is also offering Windows Mixed Reality headset bundles from Lenovo and HP for $314. However, those models as well as headset bundles from Acer and Dell are available for even less through Amazon.