A rising tide raises all ships, no?
Yup, all those folks who missed out on the 911 bubble have run to others.. 914, 924/44/68 and even 928s. Guess folks have lots of extra money to have sit in a 2nd/3rd/4th car these days. I think 356 prices have stabilized... so that Speedster that you missed out on 10 years ago at $250k is still about $250k
The other anomaly to me is the 997 GT3 cars.. seems they were about $120K new and are still about $100-120K used.
An going forward, somehow almost every "new" Porsche is a "1 of 1" considering the myriad of colors and options that are available. Ugh.. I hate to read those ads in a few years as to why someone's Panamera or Cayenne is somehow more exclusive than the next.
I had an SC back when they were 10-15K cars.. and luckily I fended off the rising values by selling it while it was still a 10-15K car