Currently there is 27 million reasons why South Carolina would not move back to the Carolina Coliseum. I have not seen the coliseum since 1999, however, I have looked at aerial and other photos of the coliseum and it appears they have built other structures in the parking lot of the coliseum, so that would make it difficult to move basketball games back to the coliseum.
I would love for both basketball teams to move back to the coliseum. Also would want the original playing surface to be installed for the court (tarp court?) instead of the wooden floor. I think the first game I attended at the coliseum was in the late 70s was against Illinois and I remember that was the first time I got to walk through the tunnel underneath Assembly Street. South Carolina was an Independent back then, so their rivals in the mid to late 1970s was Norte Dame, Kentucky and Marquette In which South Carolina did not fare well against them but the coliseum was max capacity during those three games. Of the games I have attended at the coliseum, I think the biggest win was against Ohio State (or It could have been Oklahoma) in the Coach Felton era.
Do not know if this is true, but I heard a story once that Indiana played in the coliseum against South Carolina and South Carolina ended up winning. I was told that Bobby Knight was so mad after that defeat that he damaged or broken the aircraft door on their return to Bloomington.
For the ones that witness the ACC era at the coliseum, I am sure their excitement was vastly greater than the era of my memory of the coliseum.