Unlike Bringer, Superior Spider-Man only costs four mana to cast, so setting things up in a timely manner is much more realistic
Several factors influence Arceus card values: card condition (mint cards worth 3-5x more), rarity (holographic and rare cards command higher prices), first edition status, PSA/BGS grading scores, and market demand for specific Pokemon
In a deck that wants to play things from exile - of which there are many - these are just upgraded clue tokens, because they not only cost no mana, but also have so many synergies in Commander with cards like Laelia, the Blade Reforged, who gets stronger whenever you put cards into exile
Their amazing work powers lots of MTG software products
Most experienced investors hold a mix of both
Cards like Ghostly Flicker come to mind as ways to get a lot more value from your Summoner of Sphinxes