I love these shoes; so much so that this is my second time purchasing them.  I first purchased these in July or August of 2009, through the Ryka website, for $79.  Right out of the box, they felt like your favorite broken-in sneakers, but snug like new shoes.  The segmented bottom sole makes them extremely flexible, great for trail running, kickboxing, or just about anything.  Personally, I bought these shoes to take up running, and two years and minus-18 pounds later, they were pretty tattered.  Being a frugal college student, I decided to see if I could find them cheaper on Amazon, and lo and behold, here they were, for $41.57.

Bottom line: If you want professional running shoes for a third of the price, get the Ryka Assist XT.  :)