I have a ton of fountain pens and have enjoyed them for years. From fancy Sheaffers and Watermans to cheaper Safaris and Preppys.
I will admit though, the thing that keeps me from using them even more than I do is the fact that I find them less than optimal for pocket carry (though I’ve done it a bunch in the past). And pocket carry is where I need a pen most often. So I tend to end up with regular and ultra-fine sharpies in my pocket more than anything.