It would be a HUGE pain in the *** in my opinion. My wife has an aunt who has had several that she has raised that will eventually be placed in the homes of disabled people to assist them.
She has a habit of bringing the little bastards to family functions. She is the ONLY person in the family that thinks the mean little shits are in any way amusing.
I really would not want to have to worry about WTF do we do with the monkey every time I wanted to leave the house. It would be like having to perpetually care for a toddler --- with an extremely bad attitude.
Caring for dogs is bad enough. But at least with them you can put them in the backyard, load up their bowls and let 'em take of themselves if you need to go somewhere (like work).