Nice suggestions.
I will go off the beaten path and compliment SU for doing a much better job this season of showing instant replays of close plays on the scoreboards. They don't do it all the time but they are doing a much better job on this front. Was really disappointed over the past couple of years after we got the new boards and they were just left blank or showed an ad right after a controversial play.
SU needs to understand that the biggest competitor they are up against trying to get fannies in the seats for home football and basketball games is television. Just about everyone these days has a great HDTV and an excellent setup for watching games at home. A significant number of people I know that follow SU football and don't go to the games tell me that the experience is better at home. They can see everything from there, see the replays done properly, get info on out of town scores, get food and beer much cheaper, etc. And they don't have to pay for a ticket.
So things like making sure the out of town scores are updated regularly, religiously diplaying replays of interesting plays, making sure fans have access to good quality food and drink are important. I love the idea of getting craft beers, especially locally brewed ones. Sell some Finger Lakes based local wines. Open up the concouse on the west side of the Dome on the 1st and 2nd levels, move Club 44 into the expanded area and do it right, with things like bathrooms in place. Have food courts and seating areas. Bring in local restaurants and feature regional specialities like chicken and riggies, salt potatoes, Utica Greens, spiedies, Dino BBQ, etc. These things all give the fans a reason to come to the Dome instead of watch the game on TV.