Definitely worth it especially on RWD Taycan. Of course it's not cheap to replace but definitely worth it. I think I spent $1800 for good set of performance winter tires and worth every penny
I have the 21 RS Spyders too. My first winter with them. Decided to order at 20“ winter wheel and tire set instead of just tires. The 21s have such low side walls not sure how effective winter tires would be. Decided to go down a size for the winter only.