tuckernut,
I have had good luck buy using the end of the roll that carpets and linoleum comes in from home depo. They will give it to you for free and even cut it on the saw to size. Capt the ends with some more cardboard, add a rope handle (duck taped) and you have a real durable free disposable travel case for your rod. Roll the rods in a old towel (works as a fish rag at destination) to protect them
I figure the more fancy the case, the more likely something will happen to it.
Capt. Marc