Coffee Shop offers Free Coffee - for a price

This small business owner has a great concept, will this concept take over the Starbucks coffee?

The concept is simple, pay what you want to for your coffee. If you can't afford to pay the big bucks for a coffee, no big deal - pay what you can. The cost of not paying for a coffee is your own conscience, which is greater to pay for the coffee and do the right thing or not pay for the coffee and have to deal with your own guilt. I believe in the greater good in people, and when given the chance most will chose to do what is right. Which is what Terra Bite Lounge is looking at, would you be able to go into a coffee shop with money in your pocket and not pay something towards your cup of java ?