This variety of k-cup is $23.95 for 40 k-cups. If you do the math, that's $0.60 per k-cup.
Amazon is a bit wordier with how they named this product. They call it "Constellation Tea Vanilla Spice Black Tea Pods Compatible with K Cup Brewers Including 2.0, 40 Count".
Some additional details about this product:
Need to know more? You can read more about this product on Amazon.
Oh, and here's a bunch of pictures if you've never seen k-cup pods before: