Sopranos Finale = DVD Sales

Big_moneyIt's shocking to me that in all the discussion about the Sopranos finale, not a lot of people are putting forth the theory that the vague ending is simply a vehicle to sell DVDs ...

... Is the guy at the counter Phil Leotardo's cousin?  Get the DVD.

... Are the two guys who enter the diner the same guys who tried to kill Tony in season 1?  Get the DVD.

... What exactly did Bobby say at the lake house about what it must be like to get killed?  Get the DVD.

See a pattern?  I'm guessing David Chase and the folks at HBO do also.  If they are smart they will just keep fanning the flames.

Do you agree?  Or am I just terribly cynical?