>If you're targeting competitors' customers after they've spent the time, money, and effort to come to a conference, they're probably not a good prospect. You

>If you're targeting competitors' customers after they've spent the time, money, and effort to come to a conference, they're probably not a good prospect. You are informing a self-selected set of power users about a direct alternative - you can't get cheaper exposure than this. How much money they would have to burn on advertising campaigns to get comparable exposure on such relevant audience ? Even if it leads to 0 conversions the awareness inside of that group is very valuable.