How to choose a good flagship bicycle for a friend who has 3 flagship bikes is
If you look at the used market based on famous brands, you can tell — many sales posts mean it's not a good bike; few posts mean it's a good bike
What do you all think?
Looking at it that way, Madone and Dogma F seem to appear more often than expected. Tarmac SL8 is less common than expected relative to its popularity.