Over the years I have personally tried many different nutritional philosphlies, from vegan (in my early Bastyr days) to the SAD junk diet (in my high school years) so common in the US. And even though much of the Paleo philosophy has flown in the face of conventional nutritional standards for the past 30 years, Paleo continues to be the most healthy diet plan I have found. I cannot deny that bread is tasty and cheap, and eating high quality vegetables and meats is surely more expensive, but carb-focused diets are unhealthy.
As a practitioner too, it is fun to see Paleo Patients. Why? Because they are typically the most healthy people I see. Because they are very interested and involved in their health. Because they have amazing stories of lost weight, lost ailments, increased energy, and improved vitality. It is because they have HDL (healthy cholesterol) levels that are twice the recommended values! And no blood sugar issues. Seriously. I have heard the Paleo success story so many times that it seems the norm.
To be clear, Paleo is a strictly carnivorous diet. Paleo is a high vegetable diet with regular high quality protein and healthy fats, together with minimal or no carbohydrates and little or no junk food. For some, being Paleo is almost a religion based on how well it has made them feel, while others are simply "Paleo-ish". Either way, I know that it is a healthy and historically proven way to eat.