My in-laws actually married each other four times. It seems they could not get enough of professing their love and any time there was a chance to renew their vows - they did so. Their first ceremony was full of the excitement and fear that stirs in the atmosphere when teens marry (and nobody thought it would last). Many years and experiences later they renewed their vows on a trip to Hawaii and having so much fun they did it again when they were in Las Vegas. On their 50th wedding anniversary they had a huge church wedding, their children and grandchild served as their wedding party. Their friends and neighbors filled the church ready to celebrate and witness a love with such endurance. The reception vibrated with the happiness of this precious couple and it made everyone feel good.
I believe that vow renewal is as important as that first ceremony and maybe more precious. It is that moment in life when you turn to your partner and say - we did ok.
or something more like this -
"The world, for me, and all the world can hold is circled in your arms,
for me there lies within the lights and shadows of your eyes the only beauty that is never old."