Why so many used focals?

I look on the forums to read and learn about owners reactions about focals and compared to many brands there's little action which would make me think it's a small company... til I search on AG for used focal speakers and pages of used speakers come up! Are they the type of speakers that offer a clear upgrade path OR are they short term speakers that wow the listener early and fatigue in the long term?

I couldn't be in the same room with focal's from the 90's, but the recent speakers have been very pleasing to the ear in auditions. Experienced reply's would be appreciated and please no hating on the brand. Tks