The few hours I spent playing over the holidays were not wasted. Thanks to a guildie for the loan – I have an epic speed Undead Chicken for my Death Knight.
Mortigen will enjoy the speed, and imho the only mount a Death Knight should get is the Undead Chicken/Gryphon, till you at least have one of the cool drakes from rep or instances. A regular epic flyer is just not trying.
That makes 4x epics and my first epic flyer in Northrend (and a 500g debit).