CLS-
As the other respondents have pointed out, there are countless, and we do mean countless, reasons for becoming a Mason. Not all of them are 'valid', perhaps, but that's a call you have to make yourself. If you are joining to get "shiny things" (as you put it) you are going to be very disappointed. The only shiny thing that Freemasonry provides you is the beaming glitter of a glad heart. But a glad heart is a wonderful thing to have and a treasure of such value that people around the world constantly strive to achieve it.
In fact, you will pay (petition and degree fees, dues and assessments) to be a Mason. You will be asked to contribute to charities of your own free will. You'll reach into your pocket to attend dinners and special programs. And you know what? You'll do it gladly. Gladly because (if you are truly a Mason in your heart) you will be supporting our causes. Gladly because your dues open the door of the most amazing fraternity unto you. Gladly because of the fellowship you receive.
Freemasonry is the most ancient and most honorable fraternity surviving in the world today. That says something about us: the years have not dimmed the light of our order. We have always provided, and continue to provide, an environment where good men can interact, where they can hold each other by the hand AS BROTHERS, and where they can find ways to make their communities a better place to live. Now, my friend, if that is something you want, and if you think it's worth the price; if our community is something that your heart and mind call for; and if you want to make a difference in this world, then our doors are open to you. Just submit a petition and very soon we will be able to take you by the hand as a brother.