Resistance Training and Fat Loss

How much of a priority do you make your resistance training? If it is not an integral part of your training for fat loss, you are putting a limit on your results. Weight training helps maintain lean body mass while you are loosing fat, helps up-shift your metabolism and helps you burn fat for up to 48 hours after the session has finished. Given these benefits, how could you not do a couple of hard weight training session each week.