The problem there is if they are worth it then people would not be selling. But they are so apparently not.
I imagine some take a beating Buying new then selling for a fraction of what is paid. That’s called not worth it in my book.
More likely many are put up for sale because there is a lot of profit to be made selling since it’s largely a guessing game to start with so actual value is an unknown.
Also regarding geometries please show where the relative merit or performance of different geometries is compared scientifically to establish the winners and losers and set some expectation regarding value
I imagine some take a beating Buying new then selling for a fraction of what is paid. That’s called not worth it in my book.
More likely many are put up for sale because there is a lot of profit to be made selling since it’s largely a guessing game to start with so actual value is an unknown.
Also regarding geometries please show where the relative merit or performance of different geometries is compared scientifically to establish the winners and losers and set some expectation regarding value