I just realized... at least every 1 note in a 1000 will be a radar. Buy a brick, get radar GEM UNC. Simple.
And at least 1 in 25,000 will be a 2-digit radar or better.
Now that I think about it, if someone had $5 million, he could buy 1 million $5 notes in bricks and he'd have at least one SOLID, 10 X###### type semi-solids, another 10 ######X semi-solids, 1 ladder and a whole bunch of repeaters, radars, rotators, flippers, samplers, PI(3.14159...), swims, birthdays, black jacks, gins and bubbles.
Now if only he could sort them out.