Right... it's totally realistic to be a wizard or an elf who can shoot magical bolts at people, but not realistic to have a badazz dog.
It's fantasy. Badazz dogs are part of it, along with elfs and wizards.
I'm curious....
You raised these dogs from pups, yet have no emotional connection to them so that you are quite willing to send them off to die?
Er.....that's cold guys...just plain cold..
'Bout the same.
The magic shops are markedly less amusing, however, because they don't involve heartlessly commoditizing the underemployed into disposable, multipurpose tools.
if I'd tried to raise an army of hundreds of hounds I expect he'd have given me short thrift.

You hear ear seekers. Because any DM that wants you to use a boring SOP to do something as simple as opening a friggin door will quickly grow tired of it working.
10 foot poles? Good for setting off 11 foot radius traps.
I really prefer a style where everyone agrees to dispense with the poking things with sticks and adventuring with 2 dozen red shirts in exchange for not putting screw job traps in the adventure. It feels more heroic both ways.
your hacking apart chests with axes and spending 20 minutes (real time) at every door, hallway, and interpass.
To quote Monty Python: "GET ON WITH IT!"

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.