I crack out 95% of all my slabbs and keep the labels, why turn them in? If I sell the books they go to the new owners.
:shrug:
Census integrity, really. Not terribly important, but each little bit helps.
Not a big deal, the coin censuses have been shot for 20 years.
Well if its been graded and I still own the book in the same condition I'd say the integrity of the census is still there (just not in the slabb). If I threw out the labels [or smoked them as OG does ] then I can see your point. If I have to resale the book and don't have the label it will hurt my resale value dramatically (generally speaking).
All, true, except...once a book has been unslabbed, it can't be undone, so even if the label remains with the book in perpetuity, the census assumes books that are still slabbed.
But it's a minor point; like I said, resubs are part and parcel of the coin slabbing biz, and at this point, the census is much more of a suggestion than a hard and fast data point. The good thing is, the census always represents the maximum amount of slabs that exist, so the number is always at, or higher than, the actual extant slabs.