Owning products from a certain brand does not make you crazy about it, unless that is the only brand you can see and talk about. I own an iMac, MBA and iPhone. Someone might call me a fanboy but I wouldn't.
If I could choose now, I would probably build a PC instead of buying an iMac and then possibly turn it into a Hackintosh. Okay, iMac was my first Mac so I was obviously excited and way too tired of my old Acer and Vista. Now that Windows 7 is here, things seem to be better in the Windows world.
Similar thing with the iPhone. I might go ahead and just get a cheap Android phone. Well, when I bought my iPhone, Android didn't exist, at least not like it does now. I'm not saying that I've been disappointed with these products, absolutely not, but I think that the non-Apple alternatives may offer more for me, at least per €.
When I bought my MBA in last November, I did some more research and wanted to get the best product for my needs. I wanted something light but a big, hi res screen, so a netbook was out of question. In the end, ultraportable market is pretty small and I couldn't find any laptops that could meet MBA. That plus my previous experience of Apple products made me to buy it, and I have been very pleased.
As long as you can think unbiasedly, you are not crazy about Apple. I can see the shortcomings of all Apple products I own and might make different decisions if I could choose now.