Thanks for the replies!
The books are worth between $2000 and $15,000 each. They include a 9.0 Spiderman #14 (old label - i would rate the book a 9.2 or possibly even a 9.4 based on the current cgc grading i've seen), two Avengers #4 (one an 8,5 and one an 8.0), a Spiderman #9 (that they damaged the upper right corner on when they slabbed it - they gave it an 8.5 but the color and sharpness of the book is astounding - but it has a bad wrinkle on one of the inside staple pages and that brought the grade down from the 9.4 range), a daredevil #1 in 7.0, an Avengers #1 in 7.5, a Spidey #6 in 9.2, two Captain America (silver age) #1 at 9.0 and 9.2, and another twenty or so low number spiderman/ff/avengers and daredevils in 8.5 to 9.4 range. Highest graded books are a Spidey 33 in 9.6, and spidey 100 in 9.6, and xmen 94 in 9.6. Two hulk 182's in 9.4. Spiderman #3 in 9.0, #2 in 8.5, #1 in 5.0. AF15 apparent 8.0 was sold (It was a restored copy) back in the mid-2000's for about 10k.
I dont want to reholster - i want to unload about half the books for my daughter's college (I figure at 60k per year for the schools she is applying to, i am looking at about 280k all in with housing, allowance, etc. That means about 30-40 books will need to be sold.
I also had the bad experience of getting at least 2 books damaged by CGC. Granted, this was when the company was new, but they cut their 'seal' too close to the tops of some of my books that had 'finger wear' - the phenomenon that some books have wrinkling of their top edge because of too much gripping pulling them into and out of bags. One of the books 'split' the top edge and the other clipped the corner. On the ASM #9 I was quite annoyed as the book was extremely sharp - on the other, they didnt punish the grade for their own bad handling.
Back then, the books were worth maybe $400 or so in the NM- range, but now they are worth much more and I prefer to leave them alone so long as they arent wasting away in there.
My younger daughter, at 11, will get whatever books remain for her college. By then, I will probably need 400k, but should have enough books to cover it.