Also if you look closely at commercially printed cards, the materials used are usually of lower quality than that of a handmade card. The card itself is usually thin and under 60 lb weight. Often they are not protected in a cellophane bag. As a result they tend to get damaged in the store from over handling. Also, printed cards tend not to use high-quality envelopes with square flaps, deckled edges, or wide varieties of colors.
Makers of hand-crafted cards, on the other hand tend, to use all of these materials so that the cards are much more attractive.
For special occasions like a wedding or birth, I believe customers prefers to buy high-quality, hand-crafted cards, especially if the recipient is going to keep the card as a momento. As one card maker put it "handmade cards are a relief in a world gone mad with mass producing everything. It's is a "real person" product you can give to another "real person" customer.
See Other Advantages of a Handmade Card Business:
Handmade Card Business Part 1: Financial Investment
Handmade Card Business Part 2: You Change Designs Quickly
Handmade Card Business Part 3: Financial Investment
Handmade Card Business Part 4: More Designs & High Quality
Handmade Card Business Part 5: Higher Retail Price
Handmade Card Business Part 6: Homebased
Handmade Card Business Part 7: Easier for Beginners
Handmade Card Business Part 8: Card & Gift in one