Just wanted to share my experiences concerning this issue. At the beginning of the year i pulled 10 long boxes out of a junk closet. They consisted of comics i wound up with in 90-92. I found 6 copies of NM 98 which i had bagged/boarded when i got them from the distributor when they were published. I knew nothing about grading, but a couple of LCS reviews said they should be 9.0 or better. Wife and i went to Amazing Arizona on vacation and got them signed by Liefeld. Submitted them to CGC/SS and are awaiting results. We watched the DP movie with Rob in a theater he had reserved as well. He seemed to be nice enough in my dealings with him. We enjoyed the weekend and i submitted about 30 books to CGC signature series with various Liefeld/Claremont/Perez/Rubenstien/Eastman signatures. Eight of these were Infinity Gauntlet #1 x3, 2 x1, 3 x2, and 4 x2, which i had dual signed. The chance to rediscover my inner geekdom in my mid 50s was priceless. I would do it again, but this time i would be able to see if the books needed pressing before i did all this!
One note on signature pricing. It may have been because it was the opening weekend of the movie, but when we approached the Liefeld booth, we were presented a price schedule. It was $50 for a NM 98 and possibly NM 97? I think $20 for other titles. Also, if CGC was receiving the books it was $10 extra per book for Rob. It happened so fast it was a blur, but i layed out $540 for 6 NM 98, 4 NM 100, and 2 Spidey/Deadpool Comiccon VIP swag sketch variants.
I am a noob coming back to this and i hope i do not get judged badly for trying to recover monies i lost in the 90s in a failed business attempt. I do plan on being active in this hobby into my retirement as well. My goal currently is to trim the ~ 2000 books i had into a 200 book collection.