instant interaction vs. conversation-based service
Which one people could get the information what they want? (Q&A system)
Which one could make people have fun during their interaction? (Gaming commercial)
In the shop, if the customers could tell the clerk which shirt they want to buy, we can give she/him that shirt very quickly (instant interaction). However, if the seller could talk to our customer and give some recommendation (conversation-base) , there might be a chance that the client would like to buy more things and feel happier.