EA needs to let us sell inventory items

You seem to be expressing a concern that makes me chuckle a little when i read it here. You're describing the condition as if there's real stuff that takes up space. Memory? The inventory is only a tally sheet, silly. There's no more storage taken up if the quantity equals one or one thousand.

Try to think of your inventory as a warehouse of virtual surplus goods. Just available any time you may need them. There's no reason to sell that stuff!