Mmm. It's a hard one isn't it?
On balance, I would say no, as having a dog is such a huge commitment. You all need to be on board with it I think.
My caveat is that DH did not want our Springer at all, it took us 2 years to persuade him to get a dog and a lot of alcohol...
From the moment that little puppy arrived in our lives, DH has adored the very bones of him, the bond between the two of them is so strong. He is bi-polar, and having the dog has had more of a positive affect on his mental health than any medication that he might take.
He trains the dog at 6am each morning, grooms him, loves him, the dog follows him round like a lost soul, they go off for hours at the weekend.
I am lucky, it worked out fabulously for us, in fact I struggled to adjust to having a dog and DH didn't, but just remember, all that care and training would be down to you if your DH didn't bond.
Good luck with whatever you decide.
And remember, DC are great with dogs for limited periods only!!!