Pay for your inventory.

[Hustensaft]

without defend them (because i find it bad too) the trouble come from the fact that all is server side i guess.... then, the server have way more data to manage.

Then they should've designed a system that is more manageable on the data side... A retainer alone equals a close to full character data thanks to appeareance and ventures.

There are various ways that are less storage intensive then retainers:
- Allow more (or better all) gear in Armoire.
- Craft Mat Tab - Save ItemID and Amount. (Look GW2)
- Higher Stack Size for Crafting Mats (WoW increased most crafting items from 99 to 250)