I just watched a youtube video on unusual/weird college basketball arenas. The Barn was one of them. But there are others that aren't exactly what one might consider state of the art. Including Assembly Hall at IU, and arenas at Vanderbilt, Villanova, and the legendary Palestra in Philly. Hinkle, which I always refer to in these discussions is also mentioned. They didn't mention it, but Cameron Indoor isn't exactly a modern entertainment facility. It didn't even have air conditioning until 2002.
I still strongly believe that the building should be saved, unless it's just not realistically possible to financially do so. And that may be the case - that the physical plant and structure just can't be brought up to date, but I think doing a remodel like they did with Hinkle would be great.