I recently set out to complete a non holo psa 9 set and then learned about this difference luckily not too late
Theres a lot more skill in deckbuilding and resolving Gifts Ungiven than there is to finding three copies of the same card for Intuiton
These are great playables (especially the Longhorn), but they are part of a Grixis crime deck, not a Mill deck with a central blue/black shell
Gameplay-wise, its not particularly good, as it demands that you constantly feed it Energy for almost overkill levels of damage, not to mention that I personally preferred Arcanine
While its good in Mono-Red Aggro and Leyline in Standard, alongside playing well in explosive Commander decks, its hardly amazing everywhere
The reason why it is this expensive is exactly because it is so relevant competitively speaking