2-way, 3-way for 1 product

The essential elements of product loved by popularity. 1. practicality(diversity of usage) 2. favorable luxurious design 3. low price and even, among 3 elements above, Number 1 practicality would be the critical concept for the success. Majority of people are fed up with their own product easily and want to buy the new one. That's the instinct of Human beings. Then I think, Why don't we make the product satisfying that kind of customers??? There must be a number of ways to get it. But now I want to concentrate on the 2-way or 3-way usage or design of only one product. I know there are lots of such those products already, but It's got the limitation or dissatisfaction of itself to the customers. The reasons are 'not that different', 'either of them in one product sucks in many way , for example one side of it can get easily dirty.'. We still ought not to miss the other 2 elements, design and price. - The reversible products ( the most common thing already) But I think it's still got the potentials on the successful marketing products. and so on... (2013-04-26 12:15, 청바지를 반바지와 긴바지로 2-way 할 방법)