Well servicing is. 89+vat per hour for Lexus and around 60 odd for Toyota.
Parts are also more expensive. They are not always priced according to the cost to produce but to the cost of the vehicle and what the owner can afford.
As and example a wheel bearing for my wifes old VW Polo cost about £30 from a main dealer but I got an original, in proper VAG packaging, for £6 from G&S.