Dining out (or not) on Saturday Night

What is it about Saturday night that makes it nearly impossible to get into a restaurant? It seems as though no one (me included)cooks anymore especially on Saturday. In northern NJ there has to be a gazillion places to eat. Yeah, I know there are also TWO gazillion people who are going out to eat which is probably at the heart of my dilemma. Seems that if the reservations are not booked days in advance then you are out of luck. It really becomes annoying when you go somewhere and the line is out the door and so rather than waiting the 15 minutes or so you leave and move onto the next place. Of course, it's the same situation there and so you feel yourself getting grumpy because your stomach is talking to you and you don't know how to answer it. With food would be my first answer but that's not happening. Then the questioning starts - why do we do this? You think we would learn from all the past disappointing Saturdays. Make reservations early!! I am an intelligent person and not usually one who procrastinates. The more I think about it, the more I think that.....IJTWLI