Yeah...speaking only for myself once I got my first one, everything else became irrelevant for me...hung on to caplocks for a few years "just in case"...took one to the range a couple times during the next couple years and halfway through the second range trip I knew I was just going through the motions and wasting money...packed everything up and went home...sold them all off during the next several months.
I suspect its a combination of things like age, some been there/done that with all the other firearms, the uniqueness and challenge of Flintlocks, the connection to the past hunting with Flintlocks like our ancestors, etc...I reached a point where if I was going to shoot or hunt anything with a firearm, it would only be with a Flintlock.
11 years now and still excited about starting turkey season next Saturday with a new .62cal Virginia...meanwhile, a beautiful .12ga Remington 1187 Premiere trap gun...which would be sudden death on turkeys...just lays in its case