It used to be a good show. It used to fill 2 separate buildings. It's been about 2 years since I went to that show.
The last time I was there the admission was $6. More than I have ever paid before, or since then. There were at the most 50 tables set up at the show and it only took about15 minutes to look at everything...twice. I will not go back until I hear that things have changed, doubt that they will.
As to the purchasing question. If I remember correctly, a Nebraska resident may purchase a "long gun" from a dealer from a neighboring state. Not sure on handguns.