Does age difference really matter in a relationship?

I just applied for a K-1 Fiance Visa. My Fiance is from the Philippines. There is a large age difference, 30 years. We should be married sometime in may or June of 2010. We did not meet on the Internet as some might think. I have traveled their frequently the last 5 years. I had girlfriends who ranged in the 30 year difference to 10 year difference. I have been with my Fiance over 1 year and we have spent many months physically together, not just long distance. I am sure Western Culture frowns upon it. I don't care, but your thoughts?