Glamorous, exciting and deliciously campy, Gossip Girl enamored fans from the first episode. The scandalous lives of Manhattan's obscenely wealthy teens were highly engrossing, but it was a formula that only worked once -- a reboot of the franchise was unsuccessful. Blair, Serena, Nate, Chuck, and Dan's stories were one of a kind, which is why fans continue to watch them to date.
Source:https://www.cbr.com/perks-of-rewatching-gossip-girl/