Why Don't You Respond To My Emails?

Just got a interesting email from someone who was very upset with me that I did not respond to his business plan he sent me completely unsolicited. Then yesterday I was talking with some folks who thought I did not like them because I never responded to their emails. Here is the deal: I donate my time at least 50 days per year at conferences all over the United States where I am EASILY found (just look at the photo gallery) and talk to people about what they are doing. I am not talking about the 20 minutes I get on stage either... from the time I get up I head to the conference expo hall or public area and talk to people until basically last call (and sometimes even later at where ever the after party is). I often turn down business meetings at these events just because I hate to exclude people and I personally just really enjoy helping people and the social interaction in general. Generally by the 3rd day my voice is completely gone from talking so much. When I am not at conferences I have to run a business (which pays for me to goto conferences) .... actually many businesses to run. And as much as I would love to go over your business plan, chat with you on AIM or give you feedback I simply can't. My general day is to get up with my kids at 6AM goto work at 7:30 leave work at 5pm work out until 6:30 spend time with wife and kids until 9pm then goto sleep or work until midnight or so.... Do I respond to people occasionally? Sure but its usually very short and 99% of the time people will respond with more questions and even want more details and stuff... Basically when I am away from conferences for me to take time out to give you free business advice I am either taking away from our companies profitability or taking time away from my family... neither of those are good options =) So hopefully this makes sense and people understand.