Isn't a marriage about companionship, sharing, loving, supporting, and giving to each other?
It seems to me that such a marriage is not going to meet the qualifications that I would like to have in my marriage.
Have you evaluated your needs and desires, his needs and desires, and what kind of a future you would have together?
It was always helpful for me to put together a list with one side pros and the other cons, well, no pun intended here.
You are asking for others to help you do this. Only you can know what is right for your life. Ask yourself, five years from now, is this going to be where I want my life to be?