Excellent advice, you can never hear stuff like this enough times. I don't buy everything I want/need. There is some stuff I simply care more about, and that'

Excellent advice, you can never hear stuff like this enough times. I don't buy everything I want/need. There is some stuff I simply care more about, and that's where my attention goes. In addition to asking 'does the customer need this?', you should ask 'does the customer KNOW they need this?'. If the answer is no, your startup has two insanely difficult problems instead of one.