Permanent Inventory expansion item
We absolutely need an item that can expand permanently the inventory so that we can hold more items without having to deal too much with other storage options that we have to pay monthly for some expansion.
Seriously, it's cancerous having to deal with only temporary option. I know that brings money in short terms but in long terms, you'll be left with a diminishing player pool, less loyal over time having to pay every time the cash items that won't last. And it's not even buffs but storages! Pay for temporary storage? this is seriously out of mind.