Timeshares, that wonderful relic from the 1970s, are about as popular as disco and excessive chest hair this year. Thanks to the recession, timeshare sales are forecasted to suffer their worst fall since this vacation option came on the scene more than 30 years ago. The plunge could reach 30 percent, according to Howard Nusbaum, president and CEO of the American Resort Development Association, a trade group, and the next year and a half could be tough, as well.

In the United States, timeshare sales fell 8.5% last year to $9.7 billion. They reached their peak the year before, when sales hit $10.6 billion, according to a study by Ernst & Young. The 2008 decline was the first sustained by the industry since it started keeping score in 1975.

How can exports not rebound? Last year ended on a sour note after posting record results, and 2009 is by all accounts likely to be ugly. The tourism and travel industry is expected to shed more than 200,000 jobs this year. Fortunately, there's a light at the end of the tunnel. The U.S. Department of Commerce expects international visits to the United States to come back in 2010 – after its first forecasted year of decline (i.e., 2009) since 2003.

This year, international travel to the United States is expected to fall 8%. The following year, however, U.S. travel exports are expected to gain 5%, with 5% annual increases through the end of 2013. We'll come out ahead in all this, but it's going to take some time.

Will the influx of foreign visitors over the next four years be enough to turn the travel industry in the United States around? It's too soon to tell right now, and much will depend on the contributions made by domestic routes. Needless to say, even this glimmer of hope must be welcome to investors committed to the airline and hotel sectors.