http://www.robertplank.com But how do you know if you're ready to take your business to the next level and go to one of these events? To be honest, the decider is: "Do you need it as a tax writeoff?" Are you making enough money in your business that you need the expenses of a plane ride, hotel fare, the seminar fee, transportation, and food as deductions? (This turns out to be roughly $700 in addition to the entrance fee at the seminar).