Consumers should expect to see more revolutionary products replacing old mainstays. In media, DVDs, books, newspapers and magazines will continue to lose ground to services like in-home movie rentals and gadgets like the Amazon Kindle.

In big-ticket items, the push for energy efficiency will continue to influence consumer decisions on cars and home upgrades.  As a result, some consumer products appear poised for a dip in sales, which could be a prelude to obsolescence. Here are 10 things not to buy in 2010, according to SmartMoney.com.