I won't pay a cent in real money, and speaking as an officer in Omerta, I advise everyone else not to. For the last two weeks I have been missing a spy in one of my villages. I sent in a help ticket to InnoGames, and it was ignored for a week, and then closed by some little kid named Trevtino (or something like that) who laughed, said he didn't give a crap and who just closed it, period. This is terrible customer service, and more importantly, the spy is still missing. Upgrading the tavern or buying other spies doesn't help: it just doesn't let me buy or build spy #2.
Which is sad for me, but also I used the $100.00 I was going to send to InnoGames on some other games. (I was a premium player in Tribal Wars so would have loved to do so again, but not with a game with such deep bugs and terrible customer service.) I have been telling everyone I know not to pay a cent here until they fix this.