Considering Warren's extensive experience in coaching, public speaking, and personal development, I'd estimate his hourly rate to be around $150. This is based on average rates for coaches and speakers in the United States, which can range from $100 to $250 per hour. His 20 years of experience and diverse skill set suggest a higher end of the spectrum, but not excessively high. It's also worth noting that his location in Missoula, Montana, may influence his pricing slightly, but this is unlikely to significantly impact his rate.