Originally Posted by
noglider
2000w could be past the point of diminishing returns for utility/cost. If you want a tiny bit more accuracy, you may have to pay a lot more. And you might be willing, but the rest of the market might not be.
The Precision 4iiii (kit) I linked above is among the cheapest of the power meters and is rated for 4000W.
I was reading about cadence, and was surprising that some of the meters have troubles above 170 RPM or so, although it isn't always a fixed cutoff.
I wouldn't be surprised if overall system accuracy plummets above 2000W. However, the most important part would be reproducibility.
Sprints, of course, are of vital importance to racing. So, while a rider might only be hitting 2000W for a few seconds on a ride, those might be the most important few seconds for the whole ride/race. How many professional level sprinters, or climbers peg their meters? If they all do, then I would expect some changes.