Shoot, I saw Ecopias for sale at Walmart just a couple of months ago. At the 122 exit from I-75 near Clinton, TN.
<looking that up>
Yup. Check it out:
Bridgestone Ecopia EP422 Tire - Walmart.com
That's just the online stuff, couldn't confirm about current avail. at my local store. Other sizes obv, and I strongly doubt those crazy tall/skinny are going to be on the rack. That would be seriously special order if you want that right now.