What's the point of owning a fountain pen?
When I was in college, a couple of years before I learned about Fountain Pens unfortunately, I bought dozens of ball point pens searching for "something" that could write all day without fail. Occasionally I would find "one" good pen, but even then after it ran out of ink I either couldn't find the same model again or buying the same thing twice didn't have the same results.
In my last year I snapped every Ball Point Pen in half and switched entirely to felt markers. They wear out fast, but you can be absolutely positive they will write when they're fresh.
I would actually daydream about how to make a "Next Generation Felt Pen", something with a "metal sponge that doesn't wear out" I thought...
Turns out people invented virtually the same thing hundreds of years ago. A device that uses capillary action to pull liquid ink out of a reservoir and onto the paper, all in one neat chain of events, going from the Body to the Feed and to the Nib, and then deposited in a flow of liquid straight onto the page.
Nice, thick, juicy black lines. Like what you get for a few moments when you pull the tip off a Ballpoint pen, only this is designed to do that all the time and can keep going for page after page until you're out of ink.
And then you get to refill it! With a few Gallons of ink at your side you could write perpetually for your entire life with just one pen!
Right now TWSBI is my favorite brand of pen. They're designed for user serviceability and the "580AL" specifically is their best model (in my opinion). Their older designs had some issues with cracking on the grip section (very rarely the barrel), but anything with the Aluminum gip has been very solid for me.
And of course Noodler's for my black ink. It dries a little slow but it's the best long term recording medium there is. Digital information is shockingly fragile and high maintenance, without sunlight or water damage most paper should last at least a century, and if you get high alkaline paper it could go for hundreds fo years.