One of the reasons about high resale value of Macs is the relative long life of G4, G5 processors. During the past 3 years, G5 went from 1.6 to 2.7, only frequency increased, no new processors published (except DC G5). However, when Apple switches to Intel, there'll be a lot upgrade, July for DC Conroe, Q1 2007 for qual-core. There is no point that Apple won't use newest, more powerful processors. Then Macs will be upgraded more frequently than before. The resale value may drop more quickly than before. Just my thoughts.