One thing I've noticed as of late and with the "Summer of Flyers" is... where are the Chaos flyers? Just about every army has some sort of flyer, whether it's skimmers with Eldar or the Tau Empire's Hammerhead to the new StormRavens for Marines of all kinds and the new GKs (I imagine Sisters will get to the keys to them also). Hell, even Orks have gyro-copters. But for some odd reason Chaos has gotten the GW shaft! During the Heresy, did Chaos forget to turn the faction of the Mechanicum that delt with flying vehicles? Was Horus thinking as he left Mars "I feel like I'm forgetting something.... Abaddon any ideas?"
Not even a lousy land speeder.... or even a drop pod.
In all I'm hoping GW spreads some of the Flyer love towards the Chaos end of the spectrum.