The never ending debate...
I haven't weighed in on this because I'm sure that what I do will be unpopular, but it works form me, my kids and my dcp's. I never have a parent ask for no nap or a shorter nap time. I also get a break in the action everyday, except for when a new baby starts and even then it doesn't take long to get them on the schedule.
We don't have have afternoon 'naptime' beyond approximately 2 years old (give or take). After 2, you graduate from your pnp onto a nap mat in the main room and **poof** it's now 'Quiet Time'. From 1:00pm to 2:30pm you MUST be on your napmat, sleeping or not, I don't care. The only rule is stay quiet and on your nap mat. Books are allowed. This is the only time of the day the TV is on, with a movie of their choice (Rated 'G' and usually Disney/Pixar, of course!). I have 100's of kids DVD's.
I have 6 here now ~ ranging from 2.5 to almost 5 ~ 3 are watching the movie and 3 are sleeping. 3 I/T are in PNP's in the other room, also sleeping and it is blissfully quiet. The littles usually go down around 12:30 while the others are playing outside.
This is the method that I have used for 20+ years ~ the only problem the I had was years ago when a parent didn't want her child watching ANY type of TV. I respect that ~ but I also told her that this wasn't the daycare for her child.
I have a WII also and the 5 year old boys can kick my butt at SuperMario on rainy days
That's my 2 cents, for what it's worth.