I use a lot of my apple gear every day but don't think I'm addicted to it. To make sure of that, I try to set aside one day a week for a low-tech experience, which is nice.
It's not always the same day, and maybe not even all of whatever day I pick in a given week, but it's noticeably different and lets me more fully appreciate both the low-tech and high-tech modes of my life.
Probably the most-used piece of Apple gear I have is a first-gen iPod touch that I use to listen to audiobooks every night. It's still going... in an equally old Altec Lansing speakerdock that won't even charge later versions of that kind of iPod. Nothing fancy but it gets a job done perfectly well. Anyway I'm out cold in ten minutes so I'm hardly a demanding audiophile at the end of my day.
Between the MBA and MBP I'd say it's more the MBP as a workhorse, the MBA for entertainment or surfing. iPods, I love and have them all over the house and in the car. I seriously crave the latest one, just can't decide about the color. (Red) or maybe black...
The iPad I use mostly for magazines and books, movies, recipes, notes. I'd like a mini iPad, I think. Maybe more for movies and TV than for reading magazines where I prefer the larger iPad screen capacity. I got a Nook tablet to sort of get used to the reality of a smaller tablet. It's a nice reader and I got a few simple productivity apps for it, but of course I fantasize about having the features of my iPad on it instead of the Nook ones I'm not as familiar with. So to that extent I guess I'd say yes, I'm hooked on my iPad. I'm hooked on the Apple ecosystem of movies, music, books, apps and subscription data, that's for sure.
The iPhones I've had I have also liked a lot but since I live in a dead zone I don't get to appreciate the finer points of, well, phone-related features. The iPhone is probably a device I'd give up if I ever got an iPod touch with a camera in it. Probably easier said than done, however. I really do like that iphone 4S and use it all day long (the cam) to document my work as well as entertain me on the go. I like it well enough that I'm entertaining the idea of upgrading my second line to the iPhone 5. Not a sure thing yet...