I saw the Ramses the Great exhibit and the Dead Sea Scrolls exhibit in Dallas. My opinion of each was the same as yours.
I went to Turkey, Texas to see the Bob Wills Museum. They had his actual fiddle. I also visited the grave site of Davy Crockett's second wife at Acton, Texas.
I thought the Dead Sea Scrolls was a little disappointing.
I saw that exhibit too (Ramses in Dallas) - the only gripe I had was that I was shoveled through with a crowd of 150 other people at the same time, and some exhibit rooms were so packed with people shoving to get a closer look, that I didnt get much time to really admire the pieces that caught my eye. But all in all, I enjoyed the exhibit itself. its about as close to Egypt as I will ever come (unless my plan for world domination comes to fruition! LOL)