Today all I have is a wahoo cycling trainer and I will do a ftp step test once a month while training and that is my base. Keeps it simple.

definitely gotta economize on the percieved psychic and material reward of success... i have this problem when i think about what things to dedicate my token budget to.

well, yeah but that data you are giving away for proprietary solutions, could be priceless. or hack/mod them not to do it if that's possible..

https://github.com/ychama/Pulse-Fitness-Device

something like this^