Nope got the idea myself actually
and yah i have thought of the 1 product thing, but i did a count and the smalles one was 7 in one category, so that is ok.
And when people browse a product, they are interested in it, if they get other products they are interested in on the same site i think the chance of them buying that too is way bigger...
The possibility could be to have just a few categories that would be set up this way