I would say you of all people would know different weapons effect enemies differently. I would venture that there are a lot of pirates who like to maintain some interest and challenge working weapons that do the best against different enemies and bosses. Otherwise why have didn't buffs or for that matter, different weapon attributes at all. I have a lower level dutch something or another that does better than most fames against jolly crews.
But this is going off topic, the issue isn't why you use things, it's about saving them. And I don't know a single pirate in these forums that wouldn't appreciate more storage in the game.
I think the dev's know this very well, and I believe we will get something done about it. Either during beta or when this goes full release.
Is more storage at this time an absolute must? Not really. Is more storage a must for a finished game?
That's a no brainer. I believe storage is one of those things that will happen. It's not if or why, it's when.
But thats my opinion on that. And me bird.