Travelling to Jacksonville in April for a wedding. It seems that car rental at the airport is extremely expensive ($60-$90 per day). However, at locations away from the airport, the rate is about $20-$30 per day. I know that the airport locations are generally a little higher, but this difference seems outrageous. Are the airport rates likely to come down nearer the date of our trip? If not, is it feasible to take a cab to another rental location?