Original sentence: Since companies prefer to maintain their consumer base, they have a strong incentive to support products for several years after their release.That does not mean the older iPod is functionally obsolete; it can still play music and can download new songs from iTunes.The new iPod is technically superior to the model the consumer purchased, which means the iPod purchased a week earlier is "technically obsolete".This would make the first iPod "functionally obsolete".When new products alternative to another have better aspects and features but serve similar purposes; "better" could mean smaller, noticeably cheaper, faster, more reliable or such
Edited sentence: " But that does not mean the older iPod is functionally obsolete; it can still play music and can download new songs from iTunes." Fortunately, since companies prefer to maintain their consumer base, they have a strong incentive to support products for several years after their release.Main article: Planned obsolescence.The new iPod is technically superior to the model the consumer purchased, which means the iPod purchased a week earlier is "technically obsolete.This would make the first iPod "functionally obsolete.When new products alternative to another have better aspects and features but serve similar purposes; 'better' could mean smaller, noticeably cheaper, faster, more reliable or such