The other aspect, too, is that the ACC is going to be asking its Atlantic seaboard schools to start flying out to Dallas and the Bay Area more than it was previously. That’s balanced out somewhat by having a conference tournament where close to 50% of the league’s members (the four Carolina schools, plus Clemson, VT, and maybe even UVA and GT) are within a reasonable bus trip to the tournament venue in Charlotte, rather than a charter flight. In NYC, Atlanta, etc. you’re guaranteeing flights pretty much across the board.
So the ACC is getting more money from the local authorities to offset its operating expenses (moving more money to the schools) and it’s offsetting the aggregate travel costs for the members. It makes sense if you look past the Carolina-centric optics…even though I think that the league is well advised to embrace its tradition in an era where tradition is being undervalued.