Maybe I'm just too old...but my mental image of "Lego" is a kid's life-long collection of Legos would fit in a single copy-paper box, be played with pretty frequently - for years - and would very likely be passed on to a younger relative or few.<p>If you are interested in <i>actual</i> environmental impact (vs. trendy anti-plastic ideological posturing), that old-school Lego use case looks pretty damn good.