For 1 person with 1 suitcase, would it be better to schedule a town car or just get in line for a taxi at JFK on a Saturday morning? Carmel, Dial7, and A1 New York Limo all seem to be about the same cost as a taxi.
Well, if money's no object, and the rate's about the same anyway, get the Town Car. It's gonna be more comfortable, and the driver will be waiting for you and can help with your bag!