I haven’t been to Costco so far this year, so a little sad to read that. Up til now they have been about as good as any I’ve found. Who made the old ones? I used to get some fantastic ones at Radio Shack, then they changed manufacturers (and of course finally imploded).
I’m due for new aids as mine are falling apart. I’m thinking of switching from and ITE device to a BTE (RIC) just to get better battery capacity.