- Sorry to say, as a rescuer, that your DH is talking out of his bum! :o A decent rescue will neuter, vaccinate, microchip, assess, and vet check and provide lifelong support and backup, as well as take the dog back should you ever be unable to keep him.
- £200 will certainly buy you a Collie... from a puppy farm. There your £200 will get you a dear little soul who will be of about 6 weeks of age, too young to leave his mummy, has been brought up in a shed, who will be interbred, unsocialised, not health checked, not screened for genetic disease, not vaccinated (and neither will his parents be) and who will quite possibly be a vet bill on legs or dead within a month.
It's a harsh reality, but a reality nonetheless.
Otherwise it will get you a Collie bred by some novice dork without a clue, who again has done no health checks on the parents or pup and no idea of how to socialise or care for it but who wants to make a few bucks on the side.
I'n sorry to say that sometimes a dog can die suddenly and at a young age, regardless of coming from a rescue or a breeder... as you doubtless know, whilst you lost an ESS who was a rescue, MNer Kid lost the ESS she bought from a breeder.
A Border Collie from a reputable breeder with all relevant health checks will cost at least 3 times your DHs idea of a budget, possibly considerably more.
The money from the sale will go towards a new TV for the breeder perhaps, or towards the costs of the next litter.
As you know, a donation to rescue and the space freed up in that rescue when you adopt from them will provide sanctuary to another dog which would otherwise be put to sleep in the local pound for want of a home.
Perhaps you can remind DH of that too?
Oh... and I'd recommend Wiccaweys as a very good Border rescue, or suggest that if you are in/near Cambs that you meet the adorable Beau at Poplar Farm Kennels. 