Gonna be honest, there's no price I'd be willing to pay for YouTube Premium.
I used to pay for YouTube Red. I didn't cancel it because it was too expensive, I cancelled it in retaliation for all the other shitty things YouTube has been doing. If YouTube wants me to return as a paying member, they need to reinstate the ability for small accounts to monetise their YouTube accounts; they need to stop demonetising/restricting educational content that might be related to war, weapons, sex, or sexuality; and they need to change their copyright policy to make it much, much harder to abuse false claims.