Although the internet has provided us with a more convenient and faster way of communicating with each other, there is still something personal about sending and receiving cards and letters the old fashioned way. The fact that you have taken the time and effort to choose or make a card or write a letter means that that the recipient of the card is important to you. You can also keep that said letter or card as remembrance. A great example would be sending happy holiday cards to friends and relatives. The recipient of these cards would appreciate the fact that you have given them a card that will express how much you still value and remember them.