I wish Google Now was that good for me. I've used the same commute since starting to use Google Now months ago, but it keeps telling me to use an alternate rout

I wish Google Now was that good for me. I've used the same commute since starting to use Google Now months ago, but it keeps telling me to use an alternate route that takes the same time, but has tolls, busier roads and a higher probability of delays. I can't seem to get it to figure out that I won't go that way. While I can use Google Now on my Galaxy S III, apparently Google doesn't want me using it if I won't do things their way.