The answer, as I learned, is pretty simple: Demand currently outstrips supply
You can build K'rrik pretty much however you want, but unless you're playing pure jank, this Commander probably only belongs at tables playing Bracket 3 or higher
Pillar Analysis: This card perfectly embodies Scarcity (Alpha set, ~1,100 printed), Legendary Power (the most broken artifact ever), Iconic Art/History (by Christopher Rush), and Pristine Condition (a perfect CGC 10 grade)
Three Pro Tour Champions played Erode to the Las Vegas Top 8: Matt Nass in an Ouroboroid deck, plus Finalist Christoffer Larsen and eventual winner Nathan Steuer in their nearly identical Selesnya Landfall
Sometimes you may be able to tap into graveyard synergies if you get enough Town Greeters