Collector Boosters are the best way to collect variant rares and mythic rares, as well as traditional foil cards, and they're the only place to collect foil-etched and extended-art cards
The arrival of Celebi EX decks, which take a couple of turns to get going but do almost impossibly high damage once set up, also led to a rise in much more common, seemingly mundane cards being used like Rapidash and Ninetails, which suddenly found themselves as the perfect counter to the strongest, rarest ones in the game
Jumpstart removes a lot of the complexity of the game while retaining the core experience that makes MTG so enjoyable

Deck 1: Thunder Deck Featuring Painful Escape 2 Sanga of the Thunder 1 Thunderclap Skywolf 3 The Ascended of Thunder 2 Gem-Knight Tourmaline 1 Gem-Knight Lazuli 3 Thunderclap Monk 1 Wattpheasant 3 Wattcobra 3 Honest 1 Wattgiraffe 1 Brilliant Fusion 3 Photon Sanctuary 1 Gem-Knight Fusion 2 Wattrain 1 Harpies Feather Duster 1 Monster Reborn 3 Painful Escape 3 Back to the Front 3 Trap Trick 2 Reusable Jar 3 Some Summer Summoner 2 Hip Hoshiningen 1 Gem-Knight Phantom Quartz 1 Gem-Knight Seraphinite 1 Gem-Knight Prismaura 1 Number 39: Utopia 1 Number S39: Utopia the Lightning 1 Castel, the Skyblaster Musketeer 1 Dark Rebellion Xyz Dragon 1 Constellar Omega 1 Constellar Ptolemy M7 1 Number 11: Big Eye Deck 2: Gem-Knight Deck Featuring Thunder Hand 3 Gem-Knight Tourmaline 3 Thunder Hand 3 Gem-Knight Amber 3 Gem-Knight Obsidian 3 Gem-Knight Lazuli 3 Gem-Armadillo 1 Nemeses Keystone 1 Eldlich the Golden Lord 1 Crystal Rose 1 Block Dragon 1 Brilliant Fusion 1 Gem-Knight Fusion 3 Absorb Fusion 3 Thunder Dragon Fusion 3 Gemini Spark 3 Supervise 3 Gemini Ablation 1 Brilliant Spark 2 Gem-Knight Phantom Quartz 1 Brute Enforcerer 1 Union Carrier 1 Knightmare Cerberus 1 Predaplant Verte Anaconda 1 Draco Masters of the Tenyi 1 Gallant Granite 1 Thunder Dragon Colossus 1 Gem-Knight Zirconia 1 Gem-Knight Seraphinite 2 Gem-Knight Prismaura 1 Gem-Knight Master Diamond 1 Gem-Knight Lady Brilliant Diamond Deck 3: Beast Deck Featuring Thunder Unicorn 3 Valerifawn, Mystical Beast of the Forest 1 Yokotuner 1 The Fabled Cerburrel 3 Uniflora, Mystical Beast of the Forest 2 Kalantosa, Mystical Beast of the Forest 2 Peropero Cerperus 3 The Fabled Ganashia 3 Rescue Cat 3 Danger

This is great if your opponent is running low on life points and you need a quick way to finish them off