I usually rejoice when I get Castrum as opposed to the Netflix bunker. The rewards are still pretty high and its a whopping 20 to 25 minutes (depending on your group and how they can handly a "speed run") faster. But yeah, I've seen people drop out as well. This is especially confusing when it's a DPS who probably already waited 30+ minutes for an entry just to wait another 30 minutes for the penalty to wear off and then do all the waiting over again? Like, uuh - what? Those extra 5 million exp surely are not worth all the additional time wasted, are they?