I just published a new GeekDad post on getting mass quantities of Lego bricks: Finding Lego Bricks in Bulk.
Ray Sims went to eBay and found people selling Lego bricks by the pound and others selling bricks in hundred piece packages. I saw his twitter message on the issue. That gave me the idea of trying an experiment with The GeekSon on how many pieces are in a pound of Lego bricks.
This GeekDad post summarizes our findings. (And Mrs. Doug’s thoughts on getting lots more Lego bricks!)