Well, I'm getting married in February (my 2nd, her 1st).
I was married almost 10 years the first time, and like webbie stated, sex/intimacy, etc. go hand-in-hand with the bond that a marriage needs to stay healthy IMO. Fortunately, there were no kids in my case. We were intimate maybe 10 times in the final 5-6 years (with the last two years being nada).
I'm willing to try again because I've not been afraid to examine what I did wrong the first time around. I'm COMMITTED to not repeating mistakes. But, I'm realistic to know there will still be challenges....big challenges.
Can't wait!