Depending on where you live, stock could be very limited. Hasbro is really bad at making sure brick & mortars are getting enough supply for demand. Some things you’ll see shelf warm because they got way too much, then there’s other figures that literally get one per pallet. Chances are though that eventually there will be a set released of all the aerialbots, you’ll just have to be patient and hope for the best if you can’t get the funds together for the preorder.