If I predict the price will dip after 2.0 launches, doesn't it make sense NOT to stake?

I'm pretty terrible on price prediction and TA in general but I think price taking a hit or dip in the short term after 2.0 launches isn't an unreasonable expectation. So a question that naturally arises is whether it makes sense to lock myself into staking when I could be selling towards the peak prior to 2.0 merge then buying back shortly thereafter.

There's probably something pretty dumb I'm not aware of or thinking of but the only real concern I can think of is that there's not necessarily any accurate prediction I can make for when it'll launch which may jeopardise any potential returns, but even still I should be able to work out how much I'd receive in staking rewards over however many years or months I expect 2.0 to take, and compare that to the gains I'd get using a modest price prediction for the same expected period, and a dip prediction based on current staked volumes to decide.