Yeah I was absoloutely gob smacked when I saw the quoted prices, then I googled the Bosch number on the old one (0330001015) and it seems they are used on all sorts of manuf's cars, and much much cheaper than pricing up with the Land Rover part number.
It's always the way. GTA uses the same Bosch Maf as the smaller engined models and many Vauxhalls but is twice the price. Once you have the bosch number it's easier to find . Not surprised LR do the same.