|I'm in love with power. But is it worth the price? Like $1500?|
What this has meant in the past is doing at least one workout a week where i used this metric both to create the 'target' for the session and as a means of tracking progress. For runs this is most easily done using the treadmill, although back when i was a graduate student i favored the indoor, 8 laps=1mile track over running in place. And while i certainly don't love running on the mill, i've come to tolerate it simply because it allows me to push myself in the objective way that i think is so important (and see my progress very clearly).
A year ago i started using Wattage as my metric of choice for the bike during the winter. I'd ride at the YMCA on an older precor model stationary bike, which is fine when its cold. The wattage seems consistent from machine to machine (it should be, a watt has a standard definition after all, and you are actually doing work on the bike... as compared to a calculated speed or distance. I don't know about you but unless i pick up the bike and move it i don't actually go anywhere from all that pedaling) and, at least in theory, could actually be compared to an outside ride.