How Many Dogs are Too Many?

I love dogs.  I really do.  But I think there are too many of them and they're often not treated or cared for.  Take, for example, the five dogs which were housed in a porch area connected to a garage that recently burned down here in Madison.  Fortunately, all five dogs were rescued.  No abuse or neglect has been alleged, but why would someone house so many dogs in a porch?  I don't know, but I did want to find out how many dogs you can own, and from the City of Madison's website it looks like you can have as many animals as you want in your home as long as they don't violate any of the city's other animal control ordinances or are, "on a scale objectionable to the adjacent property owners."  So you can keep as many dogs as you want if your next door neighbors don't have a problem with it.  Here is the city and county public health's department website on caring for dogs:  http://www.publichealthmdc.com/environmental/animal/dog.cfm