Apple Thoughts: 15 Billion Apps Downloaded for iOS, But How is the Mac App Store Doing?

"Apple® today announced that over 15 billion apps have been downloaded from its revolutionary App StoreTM by the more than 200 million iPhone®, iPad® and iPod touch® users worldwide. The App Store offers more than 425,000 apps and developers have created an incredible array of over 100,000 native iPad apps."

No small feat, in just three years. Now I'm sure the Mac App Store developers are wishing their store would generate the same kind of numbers, if this article is any indication. Granted, they haven't been around as long and Apple is just now getting ready to release Lion, which seems to be tailor made for the Mac App Store process, so perhaps it is just the lull before the storm. Or people just aren't interested yet since they have the versions they need at this point and won't really take advantage until significant updates are released. I have to admit I like using it and like the notifications for updates that are available, just like on iOS. And I would use it if I needed software, but the cost factor is much bigger with the Mac App Store than with iOS. I believe that is the main reason, but what are your thoughts?