I would recommend including stats. Who knows?! The other home daycares in the area could very well follow your lead and start charging as well. Make it the new norm in your area.

In my area most places were charging $25 when I started. I started off at $27. Over the past few years there has been an increase in what others are charging. I have slowly increased my rate to $30. I even see a few charging $32-35! Most charge for stats. Every once in awhile I see a "charge for only the days/hours you need" provider. Funny how they don't seem to stay in business long.