Seriously people...just answer the question posed and leave the commentary out of it.
Someone complained about his bindings saying he should get new ones. Why? They obviously are not broke and continue to work for him so why spend money on a new set of bindings when he is apparently happy with what he's got. If it ain't broke, why fix it?
No you do not need a new set up unless you are unhappy with what you got! New does not always mean better and just because someone likes something new does not mean it will be right for you. IMO if you are happy and enjoy the performance of what you are riding than save your money and spend it on a trip somewhere and enjoy the experience or invest it and be responsible.
My gear is nearly 10 years old and I love every minute I am on it. There may be better stuff out there but I leave the hill happy with what I have. Don't chase the dragon thinking if you just have this new piece of equipment you will find that high you are looking for. Instead, work on your technique, find the right angles for you, perfect your cant, etc... Most people think they need something new but never found how to ride what they had properly in the first place.