The advantage (hopefully) would be transferring the tickets to be held by an entity such that our family could own them in perpetuity (rather than having them go away upon death). Also avoids my parents having to deal with paying for the tickets, etc. but allows my siblings and I to deal with it.
the downside, as you put it, are that you have costs administering an entity that owns the tickets, etc. and you also probably have to get the blessing from the ticket office, for which I’m guessing at a minimum they’ll extract their pound of flesh (or tell you “no.”)