Cheers for the replies! I agree, I should be using it more - don't want a reputation for being a complete polisher!
I'm based in Surrey. Quote came from Cooper Cobham, who are my nearest dealer. Amazed that Cooper Reading can be so much cheaper than Cooper Cobham; you'd have thought their rates would be pretty similar!
Anyone got any recommendations for other dealers in the Surrey area?
Cooper Cobham seem adamant that you need to follow the standard service pattern. Have dropped a note to BMW UK to ask what their guidance is regarding servicing schedule.
The car is under warranty, so need to keep the servicing in line with BMW requirements.