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I'll just jump in here to clarify a bit.
Bag space in TSW will not be close to infinite. You start out with 50 and it can be upgraded for ingame currency to 200 (not through the item shop, but for money you receive for doing missions etc.). These numbers might change for launch.
You also have bank space, but I don't remember on the fly the size of it.
Keep in mind how the crafting system works. Every player can disassemble almost any item they don't need/want and build it back together as something they need/want. This is not a 1:1 process, so by doing this you are "spending" items.
Lead Designer - The Secret World