The Conference Math

I am deciding whether to attend or sponsor this event: [EVENT, TICKET OR SPONSOR COST, TRAVEL COST, DAYS AWAY, WHO ATTENDS]. Do the full math: the all-in cost including my days and the work that stalls while I am gone, the three ways this could pay back (pipeline, hires, learning) with a number on each, the cheaper way to get the same outcome if one exists, and the conditions under which the answer flips. End with go, send someone cheaper, or skip - and if go, the plan that makes the payback happen instead of hoping it does.