I absolutely agree that we don't need to set aside one day of the year to celebrate love.
Your last paragraph paragraph sums it all up, not all the money in the world can buy true love!
Cherish your partner each moment, as you never know when one of you has to leave this earthly world. Say the things you want to say now, and continue making the best your lives together, as you are doing now, even when you grow old together.
You have found the secret of keeping that true love going!