-- Digikey (switches and diodes) shipping: $5.32 in the US
-- Signature Plastics (keycaps) shipping: ??
+There are a few ways to get the cost under $100. Using all black
+switches brings the total to $98, but I strongly recommend against
+this unless you're already familiar with the feel of the various
+Cherry switches. Using wood for the case will reduce both the
+materials cost as well as the amount of time needed to cut the
+case. Replacing the colored acrylic with transparent might also save a
+few dollars.