etsy anyone?

So, I'm debating/praying about starting a new venture, selling my cards online at etsy. One idea is to sell the cards in packs of 3, 4 or 5 cards each. Obviously, the cards would be discounted below the normal per-card price. Here are two sets I've made....

The premise behind these packs is that they are all coordinated, for those who love a particular design/color scheme. Another route will be to group cards according to function, such as a pack of "Birthday Cards", and another pack of "Thank You" cards. Those are coming soon...