I would say it depends on exactly what is included in the maintenance. Does it cover parts and labor if there is a problem? Does it include guaranteed response 24/7 if there is an issue?
You spent a bunch of money on the system, I'm sure you vetted the product and the dealer. How much will you really save by going elsewhere now? And what kind of hassle will you get IF you have a major problem and the system wasn't maintained by an authorized tech?
Give the man $200/year and rest easy that the system will operate when you need it and/or an issue with it will be dealt with on a priority basis. Isn't that what you really got it for?
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