Most of those games are much older then Minecraft (Thus the lower price), and I already own a large portion of them.
Still they're all critically acclaimed because of their quality, not to mention they're more graphically stunning, and see below.
I don't see how it being a beta should factor into it at all. Beta or not it's still a fun game that I, and nearly everyone else in this thread, have put dozens of hours into.
It means the game isn't even finished. If someone wanted to sell me something that isn't complete, I'd tell them to screw off - but not Minecrafters.
I also have the suspicion that many in this thread will defend Minecraft to the death. :ninja:
Doesn't seem like it.
If you all enjoy sandbox games, buy Garry's Mod, it is overwhelmingly better than Minecraft.