The only way to get those cheapies seems to be ordering very small chunks, or leaving "all or nothing" unchecked. Then I manage to get them now and then. There just don't seem to be any large blocks going through at that price.
I am not a promoter or professional stock trader. I'm a regular guy who enjoys stock trading to make (or lose) a few dollars. I am only responsible for my own trading foibles, not yours...do your own DD.