YouTube ads are effective in increasing sales. The results, however, depend greatly on the target audience, the type of video ad, and the marketing strategy. With proper optimization, an average click-through rate (CTR) of 2.7% is very much possible. If you’re planning on using YouTube ads, investing in optimization pays off in terms of increased exposure and conversion rates. In addition, YouTube is a search engine, so optimizing your videos for high rankings might be necessary.