You don’t need a Garmin anyway—there are free smartphone apps that work just swell. Plus you can listen to music, which you can’t do on a Garmin. :D
Yep, there are free apps like adidas micoach that can give you that info… no need to shell out on a Garmin :) It even tracks wear and tear on your shoes and tells you when you should change them.
These all require me getting a smartphone + data plan, which is more expensive than a Garmin. :(