the last week of august should have lower rates for the on site hotels.
universal hotels honor PAP,
AAA, Super Savers for discounts.
i would think if there are specials that will happen for the end of summer, they would start posting them in mid may
check the universalorlando.com website for rates on the dates you are interested. check the rates for all three hotels.
you can make a ressie then modify it when you see the rates drop.
kids go back to school on august 20th, the parks then start to close early.
that is when you will see the dropping of the rates.
some have used expedia for rooms on site.
value season i think starts in late august and ends oct 4th this year for UO hotels. i only picked up one night stay in value season myself. rest of my stay is in regular season.
if you need more help, please post again.