william - I think most scooter riders (and motorcyclists?) prefer to do their own maintenance. For one, it can be costly taking a scoot to a dealer plus you run the risk of them damaging body panels during removal if they are not familiar with the machine. Doing it yourself means you know it's done right, too. I think an oil change is a good example of a simple thing that may cost you 1 quart or liter of oil...but you may pay a dealer $100 USD to do the same job that cost you $8 USD. Same with a spark plug change or air filter change. All simple things that can be costly at the dealer or require you to leave your scoot there for days at a time.
I have posted about changing fork oil in the S200 (to improve ride quality), converting to led bulbs, removing body panels, cleaning the carb, etc. These are really simple machines plus youtube has videos on just about anything you'd ever want to do to them. You will save a little money plus get a greater sense of accomplishment from doing your own maintenance...and you'll know it was done right!