1. There are plenty of people who still uses these today. Just like there are plenty of people who uses GPS's etc;. Not everyone does everything the way you do things.
2. This is definitely an incredible deal! Perhaps this is better than a $15 one? (Besides for the obvious fact that this is actually $15!)
It's like why pay $300 for a cookware set, when you can buy one for $20 at Walmart.... And besides, according to your logic, why pay $15 for one, when you can buy one for $5?