Like most Magic: The Gathering cards, the value of Galadriel of Lothlrien depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (The Lord of the Rings: Tales of Middle-earth)
I was around for both Unglued and Unhinged
Early understandings of what the nascent format should or could be led to some unplayable cards and some miserably playable ones (hi, True-Name Nemesis!) But one thing these decks largely got right was the powerful and unique tri-color legends
And you can always buy a box with the intention to keep all the cards but still have a Draft with a group of friends
Junji, the Midnight Sky, Ao, the Dawn Sky, and Gonti, Lord of Luxury are some excellent options