I think Sioux Falls is a great choice! (I may be a bit biased as I live here) premier center is a great venue, only downfall is lack of restaurants/ bars within walking distance to arena. But downtown and now the 8th and railroad area are really great areas to hang out and have a nice variety of bars, food and even a few brewery/tap rooms.
Hopefully the slightly larger capacity than scheel's means I'll actually be able to get my hands on some tickets!