It's also quite tragic for Kazran, realising so late that he essentially wasted most of his life being bitter and mean. But that's life, I suppose.
Such is the life of your standard Victorian miser, alas. Though I do love that rather than being a miser for money like most other misers (Silas Marner, Ebenezer Scrooge, Mr Boffin), Karzan was a miser for his love's life (also, money. Hey, it works).
As for the Blinovitch Effect, I'd like to think that the giant shark ate all the Reapers that came when the two Karzans hugged. She really is cute, when she's not trying to eat our heroes!
Anyway, I love how the crisis of the crashing starship not only took a back seat, but was merely an excuse for a Christmas story. Recurring just came together in a way that was rarely executed well before (Giant Cyber-Man -- Whaa? Flying carriage over flying bus anyday!). For a story with a simple point, it sure took its time with the story beats, and I'm thankful for that. The climax didn't involve some huge and misplaced mega battle, but with a song, and that was more than enough of a payoff for all the whimsy and charm. Above all, I'm glad this episode didn't feel rushed at all, nor did it feel like it was ever slow.
What's River gonna do when she finds out that her sweetie married Marilyn Monroe?
Additionally:
-Rory's in the opening credits! Merry Christmas, Arthur!
-What a fantastic twist on the whole miser type. My class examined finance culture of London in the 19th century, specifically misers, capital, and trade in fiction. Yes, this special is set on an alien world and perhaps the future as well, but now I get to bring something up to my professor!
-Ah, the Doctor Who Homage to Star Trek XI. What a smile it brought to this nerd's face!
-Such a great use of time travel with the camera. It didn't make much sense, but it provided such a unique and creative plot device that it it must be allowed (of course, now I'm just waiting for the first person to moan that its violation of time travel according to DW ruined the episode)