Increasing your luck is probably not worth it. Not much difference in terms of luck between getting a .02% drop and having it at .024% due to an increase of luck.
Thankfully the storage expansions are perma for 10 bucks.
10$ Is still a lot though :/
that's worth it for those.
I dunno... You can have unlimited accounts and get chars 1-10 in about 2 hours and have 2 full storage chests for free per char... 4 chars per account and infinite accounts. It's just a bit of a hassle cause you have to mail yourself back and forth. But not that big of a deal if you need space...
Though...... yeah, it'd be a lot easier to have more chests lol.