Well, sure, if you don't have a car and basically just have the equivalent of a dozen suitcases of stuff or so to transport. Personally, I haven't had that small amount of things since I entered college. Perhaps I'd be more compact these days with digital media and so forth, but I doubt I'm all that unusual.

I've lost count of how many times I've moved in the last 6 years since college. For the big moves, I just sold my furniture before leaving. Other than that, I pretty much fit your description.

If you're renting you really shouldn't be spending on furniture anyway, just get rid of it.