Well, at least I can make the slow guys feel better. I'm at about 160, bought my first one in 1978 or 79. So I've been "working" on it for roughly 32 years. I'm avaraging nearly 1% a year, so I should finish when I'm 118
I was lucky enough to be interested in backs from the start, so only 7 left to get. 2 fairly easy ones and the rest probably won't happen unless I get lucky.
Steve B