Greetings, like other guardians I need more Vault space too... so if is not possible to add more slots to the vault then why don't do this... Add a new vendor called: weapon compendium where we can register legendary and rare weapons so... if i delete one legendary weapon and i want to use it again i will go with this vendor and pay the 10000 glimmers or 100 vanguard marks to get it back... and this can be done only with rare and legendary weapons (except legendary weapons from raids) Hope this comment could be useful to try to resolve the problem of the vault's space