Hmm. Stepping back from the small war for a minute, I'd like to comment on what I see as FFF's most significant suggestion. That is, that a themed titled collection (e.g. "Jimmy Olsen's Crossdressing Adventures") probably has better sales potential than e.g. "Superman's Pal, Jimmy Olsen: The Complete Chronicles volume 5".

I think I agree with that contention. A generic series title, followed by "volume 5", is a significant turnoff for a buyer who doesn't own volumes 1 - 4. So significant, that the buyer is unlikely to even pause to consider buying volume 5.

Another consideration is that the title and theme may be a hook unto itself. A title like "Phantom Zone Adventures" or "Tales of Krypton" may pique the casual shopper's interest. "Chronicles volume 5" isn't a hook for anyone who isn't already on board with that particular series.