As of today, Lurantis ex #004 carries a market price of $0.43 — cheap enough that budget is simply not a reason to skip it. For someone new to the hobby, that matters more than it sounds: you get a genuine ex card, with the real two-Prize rule and modern foil printing, for the price of a handful of commons. It is a much better first purchase than an expensive chase card you have to save up for, because it teaches you the same rarity system and the same evolution-line collecting logic without any real financial risk.
Our beginner's guide to collecting Pokémon cards walks through a realistic starting budget and the first purchases that make the most sense, and a $0.43 ex card fits that plan perfectly: buy a handful, trade for a few more, and you already have the beginning of a themed collection — Grass-types, Alola-region Pokémon, or simply "every affordable ex I can find" — without touching the four-figure end of the market.
It is also a useful benchmark card to keep in mind. Once you know that a legitimate, playable ex from a current set can sell for well under a dollar, it becomes much easier to spot when a listing or a trade offer is asking too much for a similar card, and much easier to recognize a genuinely fair deal when you see one.