Everything I've ever needed (save a Queen bed and mattress) fit nicely in my Civic trunk:
[*]chairs,
[*]8' fake christmas tree and 6' wide,
[*]1000 sq ft of wood flooring in two trips, (Should have seen the look on the faces of the warehouse people when I said to put it in the Civic. They kept asking where my installer's truck was).
[*]etc.
Full fold down seats and a tall opening means a heck of a lot can be squeezed into it. For the bed frame + mattress, I paid $30 for it to be delivered to a different city. So I'm out $30. It would cost me a lot more than that to buy a truck that would be used once a year.