casting is a sport just like fishing is a sport two different sports of course, i like casting on a field just as much as i like fishing... but some people don't like casting and are only interested in fishing, casting is definitely growing and is a very big sport with most country's involved. Anyways bit off topic there as for rod chopping, it is done by fisherman and tournament casters for example a pier fisherman may buy a rod which is 14.5ft long there for, he may find it awkward to cast in the little space he has... but the rod suites his fishing and he plans to keep the rod so, by cutting 8 inches off the butt section his rod is shorter and can get away with casting it on the marks he fishes. Me personally i like short rods 13ft - 13.5ft for casting and also for fishing, i find with a shorter rod i can get more speed into the cast and there is nothing holding me back but a shorter rod means the cast happens faster and requires better timing. some of the caster who are very big and have a great technique can get away with longer rods but some still prefer shorter rods and decide to chop down rods i guess its down to personal preference at the end of the day.