Most dealers and garages will offer a list of what is included in a service package and should certainly provide one if you ask for it. In truth, many of the 'health check' items on a service are just a visual check and an easy way to pad out the list of items. As you say, wheel alignment by eye is not possible so we would expect this to be a visual check to see if anything is obviously wrong, although this would likely be evident to the driver if it was visible to the naked eye. A major service will always be relatively expensive, but the bulk of this cost is parts and the labour involved in changing them, so the visual inspection elements would add little if anything to the cost.

We would not typically expect a major service to include wheel alignment, as routine servicing tends to focus on key components that have a finite life and are essential to maintaining the health of the vehicle. Wheel alignment tends to be something that is only checked when necessary, for example if the steering response is inconsistent or components such as tyres or suspension have been changed.