It's just not good for the environment. Few companies are as innovative as Tesla, and because the electric vehicle manufacturer is so far ahead of its competition in so many ways, the company continues to reach new heights. And while the brand has made billions of dollars in the past few years, it is always looking for new ways to make its cars more accessible and more advanced. With that in mind, Tesla recently promised that customers would be able to buy one of its products using Bitcoin. It didn't take long for that promise to come true, but now Tesla CEO Elon Musk has announced that this payment method has been suspended on the Model S and all other products. The reason? Sustainability.