And your hearing aid tech at Costco made himself out to be something he's not. See my post below and you'll understand better.
You can't possibly know that.
He admitted Costco is a "volume" hearing aid seller - you come in for the exam, they can give you some demos to try, and then if you buy the setup once and that's it. No further adjustments re your concerns.
Not so, at least at my Costco.
In the beginning I went back several times for no-cost program tweaking, and once a couple of years later.
They also provide free cleanings and dome replacement.
The Costco tech thought the Audiologist must have meant per each hearing aid, not for both!
That may be the case; I paid $2800 for the Rextons, and I've heard elsewhere that HA's are quoted per each.