This is one of those decisions that is very personal and it depends on your personality. The Toyota/Lexus Navi system is the second best on the market (for manufacturer-installed systems...behind Honda/Acura), by almost all accounts. Most cars will come standard with the Navi within about 5 years, is my guess.

If cash is important to you, don't get it. But most people who get it use it and like it.

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