Certain hotels and services are already targeting a captive audience. If you're looking for hotels in London, you're already intent on finding a hotel. A sing

Certain hotels and services are already targeting a captive audience. If you're looking for hotels in London, you're already intent on finding a hotel. A single 3 night booking in New York City will easily produce $100 of revenue for an online travel agency. So... Throwing $10 for a click is hardly a bad investment. Other products and services are not like that. Look for food delivery on Google and check how many ads are unnecessary for you