Most BB fans don't count Stars and Stripes. That was more of an abortion rather than an album :(. Also, you should accept "Christmas Album" as the Beach Boys' is implied. Speaking of abortion, someone should do a puzzle of ALL of the aborted/unreleased Beach Boy group and solo albums (that would be a long one!).
Regardless of what the fans think, Stars and Stripes is still officially a studio album released by The Beach Boys, so I'll continue to include it in the list. I will change the requirement for the Christmas Album though, per your request. Thank you for your comment.