My sweet spot is old lugged steel frames with Campy 10sp triple drive trains. I prefer steel frames because I love the ride and the look. (My frames are ones I lusted after BITD and could not afford.) I prefer modern stuff (if 15 year old Campy 10sp still qualifies as "modern") because it is easier for me to use while still looking good to my jaundiced eye. But there is a limit - I still have not gotten used to the idea of a four-arm crank spider (unless it is from the late 1940s or early 1950s and Gino Bartali is riding it). And RDs got ugly somewhere in the 11sp era and just keep getting uglier and uglier. No doubt those things work great, but my aesthetic sense will not let me find out.

Could I ride and enjoy a period-correct 1970s Masi? Heck yes. Could I ride and enjoy a latest-thing electronic shifting CF uber-bike? I have no doubt. But I have found my sweet spot and I'm happy to live there. My stuff is "better" - for me. Not only may your mileage vary, but it almost inevitably will. Vive l'difference.