We are shopping for a new car and I'm wondering if the latest and greatest safety features are worth paying a premium for, or if we should just buy without since we never had them before!

I'm talking about things like forward collision warning / braking and lane departure warning / correction. It seems like these are becoming more and more standard but I could buy a still-new but last year's model without them for much less money.

If you have these features do you like them / think they make a difference in your driving?