Seeing these lists, it doesn't surprise me that everybody is so happy with their Macs. It's easy to be pleased when you don't need much in the first place. Most of you guys could be using Linux everyday without ever experiencing a difference - after all, web browsing (with Firefox) seems to be the #1 killer application, followed by some other web related stuff and VLC. The remaining space is occupied by the Adobe Creative guys, which can easily be described as -the- traditional Mac user group.
I wonder where all the technical, scientific, medical, military, engineering and business people are?
The reason why I'm mostly happy with my Mac for personal and private use is that my list does not look much different than yours: Aperture, Photoshop, ecto, Scrivener, you get the idea.
My work-related needs look a lot different, and at work I live in a Windows and Linux/Unix world anyway. There's zero chance for OS X at our Teleport. Although OS X is a Unix, it's been customized - or castrated - to be a consumer desktop OS. Hardly the thing you want to use or need in a satellite-based telecommunications business. And neither does Apple offer any servers or business class support that could even remotely compete with Dell or HP. Apple's just much more expensive for less value in the server market, and they only offer a very tiny range of machines anyway.
Furthermore, most networking software only runs on Windows or "real" Unixes and Linux. Think Ipswitch WhatsUp. Or Cacti. You -might- get Cacti to run on OS X, but why would anyone want to do it? I also cannot imagine anyone setting up a firewall on OS X (most firewall appliances run either a flavor of Linux or OpenBSD - and that's not only because of the cost of the operating system or the fact that it's open source; I know good appliances that run Embedded XP).
Well, whatever. I think our personal software favorites for OS X speak volumes about Apple's target audience. I just hope it helps to shut up a lot of fanboys that try to convert everybody out there to buy a Mac. Just get it in your heads, fanboys: Apple targets only a very small range of customers.