The site of the tourist company, or seasonal.

Why are companies offering seasonal services and goods (required not throughout the year) constantly spending on the site? New Year's tour to Europe is interesting only at the end of the year, and beach vacation - in the second half of the spring and all the summer. Maintaining in the intersection 3 place in the output results is not a need, it is a way to throw money on the wind.
Which of this follows the conclusion? The profitable browsing of the tourist company’s website (to any other site related to seasonal works and goods) is a set of effective search optimization measures taken in the required volumes and at the right time, including reservation options and measures.