Use it or lose it, people often say they use Bristol because it's cheaper and I'm sure it is fairly often as the passenger numbers are larger but I often think if it is only say £50-100 more is it really worth spending an extra 1-2 hours each way travel time (depending where you live of course). Price of fuel is surely adding to that now, I think some people go there for a small saving and end up paying almost the same with extra fuel costs etc, let alone travel time/car wear and tear.