Background: Not an apple fanboi. Owned no apple products other than a $1500 used Mac Lisa that VPI forced the CS class to buy back in the day because they had a version of Uniplus Sys V for it...
I've owned C64, Amigas, now a bunch of PCs that have various versions of Windows and Linux starting with Windows 3.1 and Linux 1.0 (4 floppies for a distro, I miss that).
I went to the store to look at the Transformer and some other android tablets after checking out a friend's. All the Android tablets were so-so. I'd have to sideload Netflix on most of them. The displays were ok. They had an apple section so I said "what the heck, let me check out this iPad thing".
Looked at an iPad (3rd gen, retina display). Wow. It just worked so well, the display was unbelievable. Everything was super smooth. Reading docs on it was amazing. It made the Android tabs look terrible. There was just no comparison. I went back over to the Android tabs and gave them another shot. There was just no going back anymore.
I bought a 3rd gen iPad, came back for a 2nd for the kids the next day. I tried an iPad 2 for the kids, no good, 1024x768, could not use it after using the retina display (2048x1535), so exchanged that one for a 2nd new 3rd gen iPad. Definitely worth the extra $150.
I keep an eye on the Android tablets, They're starting to come out with 1920x1080 res devices now, still no comparison.
I borrowed a mac mini to try out Xcode (you have to develop iOS aps on a mac). I had tried the android SDK, not too impressed, and the nightmare of managing all the different platforms is no fun (I have to do that at work). I actually liked OS X. Nothing like the crappy OS 9 and prior. A BSD-based desktop OS - imagine that. A Linux-like desktop that is actually good.
I've been eyeing the Macbook Pro w/retina display... 2880x1800 in a 15" package. To run Windows and Linux because I have to.
If I could extricate myself from the Windows / Linux ecosystem that I write software for I would, but I can't, too many PCs, too many ties. I have to write windows and linux software. Windows 8 holds nothing for me, current distros of linux are going in the wrong direction with their insane UIs (activities? really?). But OS X is nice. Too bad the mac desktop/laptop hardware is so expensive and limited, and I can't use a phone w/out a slider keyboard.
But for the tablet experience, I wouldn't trade the retina display iPads for any android tablets. There's just no comparison.