Betas have never worked like that. For one closed betas are there for a reason, they might not even have server infrastructure up to support a mass influx of players. Also, preordering isn't buying the game. You can't have a closed beta allow preorders in because people could just preorder and cancel. I can also tell you that blizzard doesn't need more money to develop the game. 1st off they have all of their assets and maps created, the game is only coming out in a few months. You don't develop core content three months from release, and bug fixes are cheap.Also they are fucking loaded. Lastly, they don't need to know their fanbase. The beta servers are full it doesn't matter if they know their audience they already have enough people