I pre-ordered the 520 without the bundle the day it appeared on REI's website. REI gave me an excuse of out of stock. REI have since taken the Garmin 520 off the site and only have the 520 listed with the HR and Speed Sensor for sale. Usually when you are out of stock, it simply says out of stock, but stays on the website. And if it is out of stock, why not just push my ship date back instead of canceling it? This makes me believe REI listed an item they aren't going to sell by mistake and instead of telling me the truth, they make up some excuse about being out of stock.