Welcome Kovacs,
I'm a real tight arse, but I have decided with the fixed price servicing it's not worth the hassle of either doing the servicing myself or shopping for a cheaper independent. I do tend to supply my own oil though which is then removed from the bill. Usually I get better oil than the dealers would use for less than what they take off the bill.
I also switch the air filter in my car to a K & N reusable one which also saves money on every 3rd or 4th service (soon pays for itself)
This gives you the free Nav updates, free roadside assistance, a free wash and vacuum and a bit of peace of mind with your warranty cover.