Yes they buy your comics but only if they are taking any in. Call first to see what they are taking. Most of the time they only want your higher prices books. Valued 10 or more.
Yes
You dont need an appointment, they have a counter just for that, but still I would call ahead to see if they are buying right now, and/or if they will buy what you have. As Edd was saying, they dont really buy just anything these days.
Can I just walk in with them or do I have to set an appointment?
Yes, they should buy comic books.
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