I bit pretty hard into Mardu preorders instead of Jeskai. At least I got Stoke the Flames and Rabblemaster before they spiked.
I'll still be drafting far more often than I'll be playing constructed at all so I'm not too worried. I still have a nice U/B Control, mono-black aggro that can be moved into Mardu, and most of a Jeskai burn deck. I'm missing Sarkhan, two Mantis Riders and some land, but unless I'm playing beyond an FNM I'm not bothered all that much by the losses. And with all the drafting I'm sure to run into one of these or at the very least accumulate trade bait for them.