Thanks n2wdw, much appreciated. I really like your sig line, incidentally - that shows an eye for a diverse range of books, all of which are cool in their own way. Great stuff!
As for the WDC&S, I keep fairly good records on my purchases, so it's interesting to compare where I am with where I thought I might be on this run. It's been a bit harder than I thought to get a solid mid-grade run assembled. I suspect it's relatively easy in low grade, but waiting for the 'right' copy can take a while.
Back on 1 June 2012, not long after I got my 50th book in the run, I said:
Since then I've bought some more early books and had a pay a bit more to fill gaps. The statistics are now 4 years and 7 months gone, and only 68/100 books acquired - so five years isn't going to cut it unless something extraordinary happens. The main culprit has been the siren call of other GA books (ECs, Fiction House, war bonds covers...)
As for costs, so far it's a touch under $6k but now about 64% of guide on average.
I still really love these books, so let's see what happens in the next five years... First stop, I think, will be to fill in the six books in the 40s I need and/or the two books required to have the 20s covered (21 and 23 if anyone has one to sell).