I've used a lot of random pens when signing my name at various places of business, and none of them seemed better to me than a BIC Cristal. In fact, many are so much worse that I usually bring my own BIC Cristal to places where I know I'll be filling out paperwork.
It also helps that they're dirt cheap, so I can just get a big bunch like you and I don't have to care if I lose one here or there.
Ironically, I find that if I only have a few pens, I start to lose them over time, but if I have a large amount, I actually accumulate pens. Not sure how that works.
It has almost a decade of battle scars and character.
Those pens have considerable resistance but I find pilot hi-tec-c 0.4mm write as smoothly as a Bic but a far cleaner line and is a good compromise for everyday use. It’s not like most of these pens are particularly expensive or anything either.
There's nothing wrong with bic cristals except that its kind of the most basic pen. Are there better pen experiences out there? many many better experiences. But it sounds like thats not interesting to you, so there's no reason for you to seek them out.
There are meaningful differences between how it feels to write with a fountain pen or other type of nice pen vs a bic but there is no reason you might not just prefer how a bic writes.
I like the relaxed, but controlled feeling of a fountain pen. Writing with bic like pens my whole life I got into the habit of gripping the pen hard and pressing down hard and it made me hate writing.