Not to keen on long life either.
My dad had his A4 from new, with long life only had 2 services, and by the time the 3rd came along, warrenty expired, and needed bits sorting. At least with a 12 month service, you can squeeze a service in before the warranty ends, and get jobs sorted.!
Think about it, with long life, your 3rd service is after tehe warranty,therefore costing the owner hard earned readies!
How much do Audi get out of that????