At the end of the day, whatever device you decide to use comes down to personal reasons. I use Apple almost exclusively for the following reason: interoperability. When I'm away from my Mac, my iPhone is my interface to it. When I pick up my iPad, everything that I was doing on my phone or Mac is instantly available, even though my iPad (2) has become nothing more than a remote control for my home theatre.
I use Mac, iPad, iPhone (x2), AppleTV, Airport Extreme (x2), Airport Express and I still find room for other devices. I simply cannot see life without a Windows PC, because there are programs I use that simply do not exist for Mac. Yes, I know I can run Windows on a Mac, but the PC is way more cost effective.
I used a Samsung phone for a while, and hated it, simply because I didn't understand the OS and couldn't be bothered to learn it. For anyone who is already comfortable with it, or has a longer attention span than I do, I'm sure Android devices are just fine, or even superior to Apple in certain respects.
I just don't see anything like the intimate relationship between iOS and OS X available anywhere else.
If your personal circumstances lead you to choose a device other than an iPad, then so be it. These devices are above all about convenience, and if Apple can't give you that, IMO it's time to move on, with no regrets.