There are many dogs. Millions are put down each year because people dont adopt them and there time runs out. These dogs are so loving and sweet give them a second chance... they never did anything...
Two dogs can pull a dog sled, but typical teams can be between 4 and 20 dogs depending how long they are pulling it for and the weight they are carrying.
If you have six dogs living in a small apartment, then I would say yes, six dogs is too many. But if you have a house with a large yard, then six dogs isn't too many.