I picked up a bulk pack of Alphas off fleabay for <$50 shipped. The outer box was opened but none of the inner packs were.
Haven't dug in yet, but plan to soon.
I passed up 2 or 3 other 12 packs for $11 at various HL during the big clearance (I bought 2x - one turned into various scratch-builds and other went to a rocketry lesson with my kids scout troop). At the time I realized I really only used the body tubes and would be better off putting the $11 into BT-20 tubes. However, in hindsight I should have bought them for other scout builds.
On the Vikings, I kinda see it that way, too. That nose cone isn't one I'd pick out of a lineup to use, and I'd shape my own fins and make my own recovery, so I'd basically be buying expensive BT-20 in short lengths that would lead to a lot of waste.
Alphas are different. Being non-MD, they offer a multitude of options to get creative with the build and try out techniques that the Viking does not.