The pricing of just about any factory parts, from any manufacturer, vary immensely.
A complete headlight unit for a Mecedes Benz 190E is about £25. But a short metal heater pipe with one simple bracket on it cost nearly £70 including VAT :shock:
Land Rover are just the same. I was looking for a battery box for the 90 last week. A genuine LR one is £350!! Yet other panels can be surprisingly cheap.