My response to the question posed in the title of this post is typically: “the only person who needs a patent is a patent attorney.” Indeed, if a patent attorney fails to convince clients like you that they need to obtain a patent, she will quickly lose her livelihood. You should therefore be skeptical if a patent attorney recommends that you move forward with a patent without also advising you to first fully evaluate your business model, your go-to-market strategy and the competitive landscape and determining along with you how the available patent protection may allow you to realize your company's revenue and exit goals.
This is not to say that patents are never the right thing or even often the right thing for entrepreneurs. To the contrary, examples abound for companies where patents served as a primary means of