First off let me explain something. The developers made the statement that the maximum display inventory is 80 items or 2 stacked list. They also stated they could create more sacks etc. but they'd be limited to 80 items each.
With those two limitations listed above how can there be a limit on inventory?
The 80 limit sacks are because the menus can't display or load more then 160 items on the screen at the same time.
Well, The logical fix his is to limit the items loaded per display page. If you have a limit of 80 items it doesn't mean you can't make a sack that can hold 320 items!
All you need to do is split them into separate blocks/pages. When you get to the end of the first 80 items it loads the next 80 items and so on. The limit becomes transparent because you can load multiple 80 item pages.
Who needs all 80 items displayed on the screen at the same time anyway. The screen only shows 10 items per scroll page but it's loading 80 at a time. This is the misconception about inventory limitations.
It's the same thing one of the representatives recently announced. They said the PS2 wasn't limiting new area expansion.
I hope people reading this figure it out.