First of all: Congratulations!

Happy Aniversary!!

Marriage is a commitment contract, where each one is supposed to love, protect, help, and endure the other one.
You should Marry if you both love each other, have the same goals and vision of the future, If your reñigious concepts make your faith grow due to Marriage, then go ahead and get married, but not just for moral reasons or tax or even Nationalizations, I personally recommend everybody to find love in your partner and help them keep the fire going on through the day by day difficulties and hardships; after all, you will sleep together at night, so sleep well and sleep tight, but sleep in love, not in fights!!!
Marriage is still relevant in today's society!