ULL would be a good team to play in Biloxi. Wish we could get a weekend down there organized where MSU, USM, UM and a team like ULL go down there and play four games each, with MSU and Ole MIss each playing a two game series against USM and ULL. You could also make it work with just MSU and USM and then two other decent RPI teams that are within driving distance.
I was pretty surprised that it was ULM that State played in Biloxi this year. Well, surprised that ULM agreed to it rather than Pearl or Starkville. That's a 4.5 hour drive for them for a neutral game on a Wednesday and they then played AT Arkansas State Fri-Sun, which is 7 hours from Biloxi. That had to have been an expensive trip for them overall. Oh and they went 0-4, so they traveled a ton, likely spent a lot of money unnecessarily, and lost 4 games.
ULL, South Alabama, Troy, Louisiana Tech, and Tulane are some good midmajors that will usually be Top 100 teams that would likely be willing to play in neutral tournaments there. And some northern teams would likely be willing to fly in during the early season, and flying to New Orleans and driving over would likely be cheaper than into Jackson or Memphis and driving to Starkville or Oxford.
If I were in charge of the MGM Stadium, though, I wouldn't want Ole Miss and MSU there during the same weekend unless they were playing each other. I'd rather have them there separate weeks to each bring a crowd of their own. Because the biggest crowd would obviously be us playing each other, but Biloxi isn't getting that game anytime soon. So it'd be better to get 15k over two weekends for 30k total than 25k for a weekend of us both being there.