Putting its design to one side, the card itself has some pretty deadly attacks
Even if collectors don't have a PSA 10 Charizard, there are plenty of vintage cards that are worth a good chunk of change

A Good Thing (playtest) Abstruse Appropriation Anguished Unmaking Ashen Rider Athreos, Shroud-Veiled Ayli, Eternal Pilgrim Beckon Apparition Blind Hunter Can't Stay Away Castigate Cloak and Dagger, Entwined Conciliator's Duelist Consecrate // Consume Consecrate // Consume Despark Dire Tactics Ethereal Absolution Evershrike General Kudro of Drannith General's Enforcer Ghost Council of Orzhova Hide // Seek Identity Crisis Invasion of New Capenna Invasion of Tolvada Jirina, Dauntless General Karlov of the Ghost Council Kaya the Inexorable Kaya's Guile Kaya, Bane of the Dead Kaya, Geist Hunter Kaya, Ghost Assassin Kaya, Ghost Haunter (playtest) Kaya, Intangible Slayer Kaya, Orzhov Usurper Kaya, Spirits' Justice Ketramose, the New Dawn Legions to Ashes Liesa, Forgotten Archangel Merciless Eviction Moira and Teshar Necromancer's Covenant Nita, Forum Conciliator Obzedat, Ghost Council Ondu Knotmaster Ondu Knotmaster Orzhov Pontiff Priest of Fell Rites Profane Procession Purgatory Qoneus, Horizon Splicer Rise of Extus Rite of Oblivion Rite of the Moth Sandbender Scavengers Silverquill Charm Sin Collector Soul Search Spirit-Sister's Call Syr Vondam, Sunstar Exemplar Teysa, Orzhov Scion The Kenriths' Royal Funeral The Spot, Living Portal Tidehollow Sculler Triad of Fates Unmake Utter End Vanishing Verse Vizkopa Confessor Winter Soldier, Icy Assassin

Its also important to note that the value of any given card can always be influenced by future releases, so the best cards from a given set are subject to change