Boston Ballet’s production of The Nutcracker is being thrown out of its home at the Wang Theatre next year in favor of a touring holiday show, but the classic Christmas ballet is apparently still a profitable enterprise. The 2003 run of Nutcracker pulled in a record $6.6 million, more than $1 million above the company’s projections. As much as $2 million may be needed to transition the production to a new venue, and Boston Ballet still isn’t sure where that venue will be.