I think a lot of people are replacing old XP PCs having kept them longer than usual to avoid Vista.
There are definitely still people and businesses hurting, but there are also signs that the economic recovery is well underway. One little bit of evidence is the surprisingly strong growth of the PC market in the first quarter of 2010. Looks like a lot of people are buying new systems. Get some of the market numbers in this report.
Worldwide PC Market Grows Over 24 Percent in Q1 | News & Opinion | PCMag.com.