This "SOMEONE" has only bought the ones noone else has found - they're the cheapest. Also, the good cheap ones have a nasty habit of coming attached to a camera, and someone thinks that somebody has enough of those. At least until christmas is over...
But yes, they're brilliant things. One lens board for everything from 20 to 97mm diameter (the one in the picture), and I've also found one small enough to put on a Speed Graphic lens board, which makes it a lot easier to use all those little brass thingies.