As it was the 28i I was quite prepared to forego the PDC and the enhanced bluetooth as well as the comfort pack which the 20i came with. Just personal preference but i've never had PDC and whilst my wife's 1 series has it (and it is quite useful) I just intend to park a bit more carefully!
Didn't get the service pack - £450 was mentioned for 3 years but I only do about 5k miles a year so it wasn't going to be worth it.
I'm just glad that as it's a pre-registered '62' plate, it comes with the balance of the 3 year manufacturers warranty, which is always a huge weight off your mind when buying a car.