A home projector installed on the ceiling - Denise Hasse/Getty Images Price decreases of electronic devices can be staggering for people who lived through the 1990s and beyond. TVs are a great example ...

Price decreases of electronic devices can be staggering for people who lived through the 1990s and beyond. TVs are a great example of this, as HD models were once over $5,000. Now you can own one from ...