Rescue dog or random dog?

[Digginmom]

We are a family of 3; my dh, myself and my ds who is 10 and autistic with low support needs but is quite loud with random erratic movements at times (its relevent).
Up until this week we had two dogs, a greyhound and an elderly whippet. The whippet died earlier this week, she was very ill and it was kind of expected so for the last few months we (dh & I) have been talking to my son about the possibility of her passing, and as part of those discussions we agreed that after some time had passed we would get another dog. We decided that as both dogs came to us before my son was born the new dog could be a type/breed/temperament that he wanted rather than one that dh and I would choose so we did some research together and decided he wanted a small to medium dog (terrier type) that didnt mind a sometimes boisterous child who could become a boys best friend (sleep on his bed, go exploring the woods etc) but has to be at least a year old and house trained because I dont want the hassle of dealing with a puppy.
My greyhound took the whippet passing harder than expected so I started looking around to see how difficult it would be to find a dog that fit our criteria and discovered its going to be a nightmare BUT I then find a dog that fits us perfectly, loves kids, needs to be with another dog, 2 years old, house trained, bomb proof temperament and is in a local shelter.
Now on to the aibu bit. The dog costs 350, which afaik is about the going cost for a rescue however my husband is balking at the cost and keeps sending me screen shots of (unsuitable) dogs on pre loved that are 100 or 150. I get the cost is a factor but I just dont understand why we went to the trouble of researching what we need in a new dog only for him to totally ignore it and want to choose a dog based solely on price. Noone is going to tell you the truth about behavioural issues if they are selling their dog for 100+ and what if it doesnt work out? What do we do with a dog if it doesnt get on with my greyhound? However with a rescue they take the time to learn about the dog because they want a successful adoption as if it doesnt work out they will normally take the dog back.
He also has form for just randomly turning up with a dog he "couldn't say no to" as that's how we got the greyhound. Apparently he met a guy who was on the way to have her pts and she was a whippet puppy (we had been discussing getting another whippet at the time) so it was like he was fated to be her owner 🙄

Go for the rescue. You’ve got a bit of backup if it goes tits up but like you say you’ve already found the perfect dog. £350 is a fair price. It helps cover their costs and helps them help further rescues. That’s what I paid for my little furry bundle of perfection.

Your husband sounds a bit of a twit. Stick to your guns Op. That £350.00 will have covered the dog being checked over by a vet for, all and and any inoculations being up to date and a thorough vetting process on the dog's temperament and needs, so you know exactly what your are getting. All this has to be paid for and you also know that you will get the chance to introduce your greyhound to the rescue dog first and to take the time to see if this new dog will get on with your existing dog and your DS. You also know if it doesn't work out the rescue home will take the dog back.

Why your DH thinks all this should come at no cost to you is beyond me. Don't let the twit derail your well researched plan. Make plans to visit that rescue dog asap.