I would still do the rotation. If you do forget, then at least when you find them in a year hidden in a closet you can sell them in like new condition or save them for the next kids! My kids actually do much better with a smaller assortment of toys, so actually spent this morning putting some into boxes to store. I have to hide them from DH too or they'll ask him to get them and he'll just take down every toy on the high shelves.
SAHM to Coralie, 1/09, Siri 9/10, Ellie Sue 9/12, Baby #4 due May 2014.