Tapcon Concrete Screws 75pk with concrete bit, $3 YMMV

Home Depot has had a variety of Tapcon Concrete Screws on clearance at my local HD for quite some time, but they have been $11. Today I saw that they have gone down to between $3-5 depending on the size and qty. They include a concrete drill bit, and usually retail for between $13 and $20. I would assume this is pretty ymmv
http://www.homedepot.com/p/Tapcon…/100136988