Used one for close to 50 years and it's definitely a step forward. There's a reason they relegated fountain pens to a fringe group of luddites and technophobes the same way digital photography did to film. I say fine, to each his own. Use the camera you like, the pen you like, smoke the turd at the bottom of the bowl of a pipe if you like, hell smoke a Lakeland if you like. Just proudly say "I don't care if it's archaic or nasty, I happen to like it". Positing arguments to "support" bucking the tide of progress sonnds either a)insane, b)condescending or c)defensive.
It's horribly sad to hear someone say they went through the golden age of the best writing instruments ever invented and never found one worth using, though I can understand how it would happen if you never learned how to get the most out of the mechanism.
Fountain pens can be fiddly, but ballpoint pens on the other hand are pure evil.
When I was in college (not too long ago) and had to do a fair amount of writing by hand, I went through dozens of ballpoint pens, every price range, and never found a pen that could make it through a day without stopping. I even tried using a bunch of Fisher Space Pens, surely a pressurised cartridge used by NASA would perform better, right?
Nope. It could have been that the store I was buying from only had old stock, but whatever the case the result was the same, a pen that couldn't make it through the day, leaving me with no recourse but to keep an entire pack of assorted pens on hand at any given point and just cycle through them as they would all randomly start and stop working.
You can't get by without one if you're doing carbon copies, but if your intention is to write efficiently then the ballpoint pen is a tool straight out of a nightmare.
Finally one day I went through my room and grabbed every ballpoint pen I could find and snapped every single one of them in half (the Fisher cartridges got chopped up with wire cutters). I used fine tip felt markers from then on.
Unfortunately it wasn't until a few years later that I first tried Fountain Pens. Just about the most beautiful things in the world.
It's not hard to imagine that a lot of people over the last century would feel the same way about Fountain Pens as I do about ballpoints, the difference is, you can fix a Fountain Pen.
Every characteristic of the writing instrument can be tuned to your liking, line width, writing angle, pressure, and how much ink flows to the paper, it's all perfectly controllable. I'm not done with a nib until it can place dots on free hanging paper with 99% consistency. Once you have one of those, nothing else can possibly compare.
These aren't just perfectly controllable, but durable and consistent.
A few years ago I lost a TWSBI 580AL in a farm truck, and finally this spring I found it. After a year and a half under a truck seat, including one and a half bitter Canadian winters, the nib wrote perfectly the moment it touched paper.
They write especially well over dirt and grease too, you'd have to use a pencil to really find something more reliable.
Ironically I'd say a Fountain Pen is at home in a dirty truck as much as anywhere else. Ink does smear, the pens can burp with pressure or temperature changes, and I do find ink creeping up the grip sometimes, but as far a functionality goes I'm confident that there is no mechanism known to Humanity that is more consistent, effortless and reliable in transmitting ink to paper than a well tuned Fountain Pen.