Thanks, DaveO. I was beginning to feel underprivileged.

Joe, I feel constrained to point out that the average human bean has less than ten fingers, and less than four limbs, statistically. I like to think that the average 'catter is well beyond counting on his/her digits.

I'll have to accept opinions 'why 100,' but as to Seaking's suggestion:

Three score and ten.
Jiggit.
"I'm 102 today, by gum, aye, today I'm 102."
Seven sail of Turkish Men-o-War.
Ten guitars (Ahhhhhhhh)