The ones I talked about, in the post above, wouldn't stay stuck together. I tried to build something, and when I would move it, or pick it up, they would just fall apart. Just like they had been made out of wooden blocks.
Now, with LEGOs, I can make a stick of 20, 2x4 bricks, (or much more) and pick the whole stick up, by lifting the top brick.
Try that with cheap bricks.
steve