Which one is the right product to invest?

Ice Cream Glove:

Snuggie:

Answer: there’s no way to know if you base your answer on opinions. The only way to be sure which one is the right investment is:

getting “out of the building” and testing ideas against reality, to find out what creates value for customers before spending all of our resources building it.

For those curious to know which of these products is a good product development investment and want to read more about how important it is to do customer research:

http://radar.oreilly.com/2009/09/is-your-product-an-ice-cream-g.html