here's a great data point from Pros Closet for a used 2019
I'd never spend the bucks for SLR cuz I'd only want my bike to be as compliant as possible and would never ever use the adjustment gimmick.
This is a good option with some backing from Pros. You could do better on ebay or Craigs List but then you risk a bit more:
https://www.theproscloset.com/produc...ke-2019-60cm-1