What makes this cost that much (other than they are owned by uniball)? The material certainly isn't worth that much? And the function would be replicated in the market for less? So, what makes it not some luxury bullshit?
More expensive fountain pens are indeed luxury products - replicas are often available on places like aliexpress.
I think it probably feels like bullshit if you don't think you'll gain any satisfaction or derive any pleasure from the act of writing or the aesthetics of your writing instrument.
The nib feels much, smoother. Mine is fairly wet without excessively showing through low quality paper. The refilling mechanism is a lot nicer than the cartridge-pump I'd been using on the Al Star.
Is it better? Yeah, but it's not 10x better than the Al Star which is what the price would suggest. So it is definitely a luxury product from that point of view.
Sometimes it's nice to splurge on high quality items - especially when you use them every day, like a pen. It's a little thing, but it brings pleasure every time you use it.
Not everything is about cost efficiency. You'll never regret buying quality.