While iLife and iWork come stocked with powerful applications that are easy to use, sometimes it seems sort of pointless to install an application like GarageBand if you've absolutely no interest in editing audio, or iMovie if you don't usually take video.
Fortunately, this rumor will please those who purchase Apple's software suites and often find themselves omitting one of two applications from their hard drive. Several MacRumors readers have pointed out that Apple's promotional materials for the upcoming Mac App Store hint that it'll be possible to buy each of the applications in the iLife and iWork suite individually. If you look closely as the screenshot, it looks like iPhoto, GarageBand and iMovie could be offered individually for $14.99, while Pages, Keynote and Numbers could fetch $19.99 each.
Apple followed this model when it released the iWork suite for iPad, so it's certainly no surprise that it would follow the trend in the release of its App Store for the Mac.