Southwest’s sale fares to ATL were like $160 round trip (last checked 2019) so I set aside $350, got tickets during the sale, flew down at 6am on a Saturday, got to the Georgia Aquarium as soon as it opened, had lunch, went to a brewery, and flew home the same day on a 5:30 or 6:30pm flight. Best day trip I’ve ever taken, to me it was 100pct worth saving for; the aquarium is world class