I would have a really hard time saying "no" if it were me, but I have 4 right now and I definitely don't think I would add another.
My reasons are:
I have a lot of expenses w/4 furbabies and if one got seriously ill at this point I would have an extremely hard time coming up w/the funds. Just last month for minor things (swollen gums, fleas, an infected scratch), I racked up 350 in vet bills and just today my lhasa is having runny stools so she will need to get in on Monday.
Training-- I have slacked on the training w/my last two puppies. I'm embarassed to say this buy McKenzie doesn't even know sit yet at 8 mos (we are working on it
). I am so busy running around cleaning up after them, grooming, feeding, ect ect it is really hard to get the time in w/each one.
I wouldn't trade mine for anything, but it really is much harder. Trips out with the dogs usually have to be split up into groups. Walks usually have to be taken 2 at a time.
You may be in a totally different situation and if you feel you can handle it, I say go for it!!
I'm just giving my opinion on what my thoughts are for myself on if I could have another, which for me is a big ole' NO, hehe
Good luck with whatever you decide!!