We don't run as a daycare per say, it's actually day training or "doggie bootcamp" so we don't do massive packs of playing dogs. We have runs an xpens that the dogs stay in and then we rotate them in and out for obed, agility, behavioral training as well as socialization. When dogs are dog friendly we do offer play sessions through the day and also several walks, treadmill sessions, core training, and so on.
It costs more but it's also here for a different purpose.
It's more of sending your dog to school than sending your dog to play group. So we can't take more than 10-12 a day and fairly dole out enough training attention versus facilities that have 1 human monitoring 20-40 dogs at free play throughout the day.
Does that make more sense?