It's worth pointing out that, if you have Amazon Prime, you can buy one for $22.50 shipped ($1.47 savings). The three pack of these (https://www.massdrop.com/buy/gir-three-pack) on the other hand is not available through Amazon and seems like a good deal.
brycied00dI think it's worth pointing out that you can still get that price with free shipping directly from GIR themselves (http://productofgir.com/) without an amazon prime membership. Massdrop may still offer some value to non-US customers, however, although I don't know the shipping price comparison.