Question about Arc Pulse Design bumper protection

I don't understand why this product is so exaggeratedly expensive at Digitec. On the manufacturer's website Arc I get the black version for 58 CHF, at Digitec 129 CHF. The gold version costs CHF 108 at Arc and CHF 142.90 at Digitec. The silver version costs 75 CHF at Arc and 199 CHF at Digitec. That's a surcharge of 124 CHF for the silver version. What a rip-off you are running.