I foresee the CPO 75 market being just as "fun" as the P85D market - trying to figure out which P85D has the better suspension and which doesn't, none of which is listed on Tesla's site. With the 75s, it will be which one has the faster time and which one doesn't.
Ah well, it's all part of the fun, I suppose. These rapid changes are also why I will probably never buy a new Tesla (unless it's less expensive like a 3). When I buy used, I know it's already outdated, and I got a good discount for that.