Hmmm
It is not
that expensive if you think about it.
Just consider what a high end built in Nav system costs today. I don't know how much they are in US, but in Sweden you have to pay about $4k for the BMW's Nav system (command).I find the Sony system far more impressive than the BMW system. Still I would never buy it for that price. I am better of buying a map for $5 and spending the difference on a new Mac.