I received a letter in the mail from Honda saying it's time to buy a new navigation DVD for my 09 Honda Fit. It's $149... Worth the upgrade? Know anywhere that sells it cheaper?? $149 seems a bit much to me.

 

anything that is cheaper, and not from a Honda dealer is pirated or may not work.

It's up to you if you wish to go that route, but you should be able to easily find sources with google or ebay.

 

Planning a long road trip or have your roads changed significantly since you got your fit? If not, its probably not worth it.

The only other source is ebay for used ones, ie people who upgrade every year and sell the older disks.