The storehouse cannot store reasonably helpful quantities of items once you reach the mid to endgame, because it does not keep up with your inventory size and very quickly costs significant amounts of gold to expand very small amounts of space.
Currently, my inventory can hold 14,600 items, my storehouse can store 500 each of 35 different items, but I can make it store 525 each for 95 gold. This is quite a significant cost for such a small benefit. It's really only useful for holding one each of a lava and inferno sphere.
What would I recommend changing? I think the storehouse should hold stacks of items, up to a percentage of your total inventory capacity. With reasonable amounts of gold, this can be expanded to eventually be 1:1 of your inventory size, and then expand even further. For example, there are 30 item slots, I paid for it to store up to 100% of my inventory size, so now each item slot can hold up to 14,600 of that item. When I expand my inventory tomorrow it automatically can store 14,620 of that item.
Why would this be useful? As you approach the endgame there are MANY useful items that you "void" while working for just one or two items from a zone. You may also ac-blam!-ulate other items daily (like eggs, milk) that you need to process later but don't have the bandwidth to really start accruing them right now (for ex., corn oil - you need lots of corn for other quests!). This lets players make strategic and rewarding decisions about how they approach different parts of the game.
Lastly this would be a good revenue spot for FarmRPG, as the quick store perk would become significantly more useful, and so would expanding storehouse storage with gold.
