PPC can be expensive, so why is it popular as a marketing method?

The internet has become a vital marketing medium, and pay per-click (PPC) is one of the many ways for a business to attract traffic. It is risky, and a business can spend a lot of money, get a lot of visits, but end up with very few actual sales. Search engines allow businesses to buy listings in their search results; they appear next to the non-paid organic search results. These spots are sold by auction. If the business bids the most, they get a chance, but only the chance to be ranked first.