Why would they do that?? Well, I hope by the time I'm ready to get one there will be more options out there. Thanks for the advise!
Because they think no one needs data with such frequency. It's a simple firmware tweak to implement.
I believe that the head unit will record 4x/second. I imagine that they take so many readings so as not to miss any...but they figure we only want averages and not instantaneous data anyway. It's geared towards everyone but track sprinters.