I know someone who kept “updating” their TV every year by taking advantage of Costco’s generous return policy. After the 4th time, they let him know they won’t be doing it anymore — I don’t know if that was a whole-store change or it applied specifically to him.
Costco was saying they wouldn't do it for that person any more. It's still very much their policy to take back returns for products you don't like or that broke.
You just can't abuse the policy. It may take them years to detect that abuse, but they'll stop you when they do.
