It might be worth a trip depending on how far up you live. There are only going to be about 90 vendors, but in that respect, it's bigger than the Raleigh show at the NC fairgrounds which only had about 50-60 vendors.
The morph selection is somewhat lacking at the Columbia show, but they do have a good share of hots. I was hoping that Repticon could get the Charleston show to materialize. That would draw a lot more people, but that project is stalled.