I only have Rosie inside but have other dogs outside. I look all the time thinking I would love to have another but...
1. The expense holds me back (Vet, grooming, etc)
2. Rosie is very attention seeking. She likes my undivided attention. And she gets it!

3. My husband would kill me!
4. I would have to buy a new house to fit all the clothes I would buy (darn that prissypawfashions!)
5. I worry how she would handle having another addition. She gets along with my outside dogs as long as they don't try to come inside. If one tries to get in she goes completely nuts.
I do look all the time. And if I feel it is right, I may think about another addition. I think you will know if it is the right thing to do.