Being rather OCD and like to verify details, can the Bernese Oberland Regional Pass be purchased at the rail station in Lucerne?
I'm 99% sure you can get it there. Lucerne is not in the Bernese Oberland, but it is in the covered area, hence my doubt. You can get it at the rail station of Zurich airport and at any manned station within the Bernese Oberland region. The regional pass will also be available online soon (I expect in a week), in the Swiss railways webshop. A direct link will be available here by then.
Update: the Regional-Pass Bernese Oberland is now available online through www.swissrailways.com/en/products/regionalberneseoberlandpass. This option has also been added to the price overview here.
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