The real story here is PETG bulk pricing hitting absurd lows—we're talking $0.66/kg at Jayo with their promotion, which obliterates historical baseline costs. This matters because it finally makes PETG economical for production-minded makers instead of just hobbyists, but the catch is obvious: you're betting on consistency across 10kg of filament, and budget brands (Elegoo, Jayo) haven't earned the reliability track record of premium suppliers. Prusa's rapid firmware iterations (six releases in what looks like weeks) suggest they're either patching something serious or chasing bugs in their recent hardware line—worth monitoring but not a red flag unless you see regression complaints in forums. The hardware deals (Creality K2 SE at $159 refurb, AD5X) are noise—decent machines at predictable price points, but neither moves the needle on what's actually possible in 3D printing.