We typically go to Disney every year and stay on-site so haven't rented a car in ages. On our next trip in June 23-30, we're doing Universal and TL, so we're thinking of renting a car. There will be 8 of us so we will need a mini-van. Yesterday I saw weekly rate from Thrifty for $462 (less taxes and other charges). Other places were over $600. I didn't book it because I have no sense for what I should expect to pay. I checked back today and Thrifty was up to $560 for the same week. I looked up the discount codes on Mousesavers but none of them seemed all that impressive, nor did they even work. Is renting a car like buying air fare? Do prices fluctuate significantly? Am I better off waiting a bit or booking further in advance? I'm also debating the need to rent the van for the whole week. I saw that I can rent it for just a few days while on site through the Disney Car Center but I thought that might actually wind up costing me almost as much as a weekly rental. If there are any experienced rental folks out there I could use some guidance.