I’m 39 now and use them almost exclusively, and I have a collection of over fifty (predominantly metal-bodied, because I like the heft, but I have three or four Lamy pens too, including two transparent ones loaded with fluo ink which I call “the lightsabers”).
I still write letters by hand and send them by post. I sit down and erupt fifty handwritten page documents detailing my plans or thoughts before typing them up for editing. There’s something almost zen-like and cathartic about writing in cursive with a good pen, weighty, well-balanced pen.
Anyway, if you’re really interested in upper-crust writing, I strongly recommend the Graf von Faber-Castell “Tamitio” calligraphy set (see http://www.fountainpennetwork.com/forum/topic/331163-first-l... for a review). If you have good cursive skills and know how to glide over the page rather than dig in and apply force, it’s heaven to write with.