I can't deny that it is special, due to the history of the building, the college basketball, NBA, NHL and boxing events that occurred there. Fenway Park is like that for me. I am sure the old Yankee stadium was as well. It's about degrees though. A game against Duke at MSG, at this moment, might rate a 10 on the meter. A game at Barclays (being a cooler, newer, trendier building and locale) would then be about a 9.85. The MSG fanboys on here seem to see things more like MSG as 10, and the next best possible arena would be a 2. It is a tiny bit more desirable due to the history. That's all. Now Izod, yes that's below Barclays, but still, for UConn anyway, rates an 8 or so.
Simply put, a game in metro NY against Duke is a fantastic development, even if they played it on a playground court.