ehomeupgrade.com has an article, "Global Home Server Market Poised for Rapid Growth", that discusses a report which positions the Home Server market for rapid growth. 

The report identifies several factors which will spur widespread market availability of and consumer demand for easy-to-use, inexpensive Home Server platforms in the next few years, including:

• Mainstream adoption of broadband Internet service and home networks;
• The rate at which consumer-created and commercial digital media content is being stockpiled in consumer homes, and its impact on in-home storage requirements;
• The proliferation of in-home, mobile, and portable digital media devices which require synchronization, backup, and interoperability with other devices; and
• Swift declines in the cost of digital storage which place manufacturing and distributing inexpensive Home Server products well within the reach of most OEMs