There are a few monthly coin price guides/magazines out there. Are there any that are considered more reputable than others, or any that one should stay away from? Do you think their prices are reasonably reliable?
I subscribe to Coinage. I like their articles. Only complaint is that I wish the magazine was longer. lol As for their coin prices, I rarely check out that portion, so I can't comment on that portion.
I always have a semi-recent copy of Gray sheet & a popular coin magazine with me. I want to see what dealers pay for coins, and I want to see most people think their coins are worth (Coin Prices, for example).