With respect, 'the days of all cars having 10w-40' is one of the reasons I would service a car myself, so that it gets the oil specified as opposed to the same old oil that we bung in all the cars we service.
I service all my cars once they reach a certain age/value and keep the receipt for the bits renewed with a record of the date and mileage done at.
To the op's list of servicing I would add changing the sump nut washer or at least apply ptfe tape to the nut to prevent oil leaks. I would also check the gaps on the spark plugs because new ones aren't always correct. And presumably you brake fluid will need renewal too (it's normally an every 2 year job).
Even if you have to buy a few tools to do a service, youll still save money over paying someone else to do it, and seeing the condition of the oil and plugs gives you an idea how the car is running.
Ben