Heh. Know how that goes.urnoodle wrote:
When I bought my first gun almost a year ago, I was certain it would be the only one I'd own. I have acquired 5 more since and I have several more on my wish list. I think I'm hooked.

Regarding the used thing, not sure if there is anything shotgun specific other than what you already mentioned. Should be clean and reasonably maintained, action should be smooth and trouble free. I did a quick "what to look for in a used shotgun" google search, but it didn't pull up anything great. Hopefully one of our more shotgun savvy members can help you out with some specifics.