That is what it ultimately comes down to.
In theory, a pack from a professional breeder should have more potential ‘unicorns’ per pack than something from our local friends.
Now that said, I’ve grown plants from Overgrow breeders that blew away plants from from major sources (I’m thinking of you, RQS 
)
Folks, do not discount Overgrow beans because they don’t cost $10~20/each.
Cheers
G