Disneyfan...
I'm not sure where you get your information from.
I got mine from the people that run the Walk around the World Kiosks and now the Living Legacy kiosks at EPCOT.
Originally, Disney sold the Walk Around the World Bricks and were very successful. They went for 85 to 120 bucks apiece. The Plan was for them to go around the 3 Monorail Resorts. They were selling like hotcakes so Disney decided to sell the Living Legacy things in ADDITION to them. They were cheaper but smaller. Disney's thought's were...The people that can't afford the bricks will buy the Living legacy spots because they are cheaper.
But once people saw how tiny they were and how small the pictures were..they were dissapointed. Disney, in the meantime, had already put up the giant "monuments" to put them on.
Realizing that the bricks were selling better than the Legacy pics, and realizing that they had underestimated what the people would do, Disney shut down the sale of the bricks so they could focus on the sale of the Living Lagacy squares.
They never RAN OUT OF Walk Around The World Bricks..they just quit selling them temporarily. I was told by Disney Castmembers that the Walk Around The World Bricks would eventually be sold again.
Contact Disney for info relating to this subject. I just know what I hear ... I'm just a Walk Around The World brickowner who was asking about the Legacy thingy....