What's the maximum inventory size?

This thread indicates that the maximum personal inventory space is 200 slots, purchased using PAX at an incremental cost for each additional purchase.

It appears that your personal bank space can be increased by 200 slots as well.

The maximum inventory size is 200.

I checked experimentally by buying until actually hitting the limit. After that the "+" button only gives the message that the maximum size has been reached.

The alternative to the inventory is using (and upgrading) your bank account to "swap out" items you don't need during the game, but want to keep. Up to 200 items here as well.

The "create a cabal" trick to get additional slots in the cabal bank (as opposed to your own bank account) is available only for those who do not join a "real" cabal, and only as long as they do. Once you join a real cabal, you have to leave your "one-man-cabal" and forfeit those extra slots.

On a related note, the maximum Skill Points (SP) you can collect are 40 - after that, you get the message "You did not receive any skill points as you have reached the cap of 40.".

The maximum inventory size in the beta was 200 purchasable with PAX and you can buy 10 extra inventory from a vendor but its pretty expensive to get max inventory slots.

It's 250 now, but those last upgrades are very, very costly (almost 1m from 200-210)