Guess it’s going to at least somewhat depend on how important spatial audio turns out to be. My QC35s are on their last legs, and I’m certainly pretty curious about these having just ordered some AirPod Pros...
Just a heads up, Bose often give you a discount, or did when I last worked for them about a decade ago, if you trade in your old headphones for new ones.
If it's just the ear pads, those can be replaced for like $20.