Tell me about GPS

- How much is it?

-Do you think it's useful?

-What kind do you have?

-Is it worth the money?

My job has be regularly commuting to White Plains, and those roads close like crazy up there. Will the GPS help me find alternate routes when the roads are closed?

Also, I have already been to Stamford and New Haven, and I did ok without GPS, but I am afraid of getting lost in farm country somewhere

TIA!