In my mind, autographs are a memento of a personal encounter, not something you stand in line like a head of cattle to pay for. I don't want anyne's sig that way as a collector.
I understand some people do it for profit; I'm not going to make my living standing in line. Profit or no, it feels demeaning to me. And I cannot understand the mindset of the buyer who did not stand in line to get it themselves and at least meet the person. (Or course, with dead people, it's impossible. If you love someone's work, I get that it can seem cool to have their sig.)
I generally don't like writing on my comics. I have come to like the writing of original owners on GA. I won't pay for someone to sign, nor will I choose to buy books with signatures. I do sometimes buy collections with sigs in them; I usually sell those. I admit it's kinda neat to have Dan DeCarlo and Joe Kubert on a couple otherwise worthless books. I wouldn't know what to charge for them if I could be bothered selling them.
I have a few sigs that are genuine mementos of actual encounters with creators. If I keep any, I guess it's those. I also have OA signed sketches from the same creators, so I may well sell the comics.
I also bought an OA collection of Classics Illustrated from a completist; there was a Dan Kushner sig on the 3rd HRN of Gulliver's Travels. I offered it once; now I think it's kind of cool. But really I think it matters to me who the next steward is; I would sell to someone to whom it seems CI matters, I guess.
Those are my sig thoughts laid bare; thanks @kav