I don't think what you are asking is too much. I would call a few and ask exactly what you get for your money. I went to our first playgroup last week run by a local church.
They had different 'stations' with different activities such as painting, drawing, playdough, duplo/lego, and then other toys.
After free time play, all the kids sat down and had morning tea which we bought ourselves then had outside play, then come inside for a short story and songs.
Time is from 9.30 til 11.15.
We pay $40 a term and in addition they ask that you help with some fund raising during the terms so they can upgrade toys etc...