See
Given historical trends there will be very little revenue to burn (Kusama blockspace is effectively free right now) and Polkadot is moving in that direction especially given coretime sales move from an opportunity cost to a direct cost.
In many ways if coretime is free or near enough it creates a much better baseline for judging the relative effectiveness of initiatives that aim to drive direct coretime demand.
In this regard, Kusama will be a better short term signal for assessing varying strategies.