Why is there such disparity between TV and digital video ad spend today? The amount of online channels is nearly endless, and digital ads have far more potential to be interactive and engaging than traditional television ads. Online advertising is expected to grow by leaps and bounds, yet many marketers still are hesitant to increase their investments. In 2013, $2.8 billion was spent on digital video ads. That’s double what was spent in 2010, but it is still dwarfed by the $74.5 billion spent on television ads in the same year.