How much? Great question! I wish there was a magic "here's the price" answer, but no luck. So here's how everything is priced out, and this should give you an idea how your strategy will be priced-out:
When a digital ad runs, no matter how or where it's delivered, it's considered an "impression." Each campaign will deliver a minimum number of impressions, so your campaign can be successful. This is called frequency.
Campaigns are sold by "Impressions." Each impression has a price - the least expensive will be the "static display" ads you see everywhere (and have learned to avoid.) The more expensive digital ads will be new technologies, like streaming by TV, or Podcasting, Social Media, or campaigns that are only on mobile devices.
So, for an example: working with a $2,000 budget, you would get: "60,000 impressions per month using OTT," but "150,000 impressions per month using mobile conquesting." The most important feature for an advertiser is the combination of the right frequency, combined with your message being delivered to the right audience, on the right device.
The geography matters in pricing, too. Are you geo-targeting an entire state? A City? Or, a 25 mile radius around a town? The smaller the geo-targeting, the less expensive the pricing will run.
Also, we only buy top-of-the-line impression space, so no impressions are wasted, or go to the "wrong" websites. Also, if you are targeting "35+ females who like yoga, with a household income of 75K or higher" you can be sure thousands and thousands of other companies want that demo, too. Our buys allow us to compete with anyone in the digital ad space, so our prices reflect being competitive with ANY company in the country. This is why our metric data always tracks higher than average campaigns. Be wary of budget campaigns.