....how many persons have been able to collect all the "normally" catalogued $10's.

A few years ago this same discussion arose and at that time collectors came up with a number of less than 10 who were getting "close", with the possibility a couple had them all.
I think that's the # most of us fanatics are looking for. After all, there needs to be a concrete goal so one can be part of the "club"...the ones who have the perfect "normal" collection.
The other "club" contains members who have strikes most no one else has a chance of obtaining.

After 6+ years I still am looking for 30-40 and that's not counting the 30-40 "coppers" I haven't gotten yet...but I'm kind of slow .