I'd prefer have a unique and shared quote each day keyed on the day of the year. Then restart when going above N and shuffle.

TIL about the coupon collector problem. Thanks for sharing that link

If the user doesn't know how many unique items there are, they would need to keep refreshing even longer to gauge whether the N they've seen is the full set.

Make sure you fingerprint every user to make sure they're using the right index value /s