That depends if you believe that the beta contains any real secrets. The beta is apparently a release from mid-2011, so it will not have all of the features of the final release.
People are assuming that Microsoft have included every single feature in the beta, but they really haven't. Plenty of people are inspecting the software further and finding out that the game has a lot more capacity for features than the ones it is showing off right now. Those people are the 'smart testers' rather than the ones who just record their screen, put it on Youtube and cause rage across the world with their ignorance.
Afterall, the beta is a 'test', not an evaluation. And I have a few ideas about what exactly they are testing. Suffice to say, the secrets are still locked inside, away from the beta testers.
[glow=yellow,2,300]Big Island of Hawaii.
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[i]Funny, I had the same vision you are having