I would simply tell them, I am in the e-commerce business the new generation way of buying and selling. That is in one sentence and you can add more of the advantages of the kind of business you're into. List of advantages includes the discussion of start up cost $0, residual income guaranty, business daily attention 1 to 3 hours if need be, product variety guaranty, maintenance cost $0, and income guaranty and you can go on and on if needed by the questioner
