Because I am kind of new to this, I try to use the kits a couple of times for a LO using only the kit. It helps me to keep it co-ordinated. If I use only the on kit for more than one page, it is because the pictures are from the same event. Only exception is my grandson's Tae Kown Do stuff. Same couple of kits over and over. Not much out there.
But, I also use bits and pieces of the kits on other LOs too. I like my pages to look different from each other if I can.