Most Android devices are sold free with contract or with low tier phones to people who don't care much about smartphones. As for Android tablets, they don't sell that well, period. That's the huge majority of Android users. A minor one is geeks like us, open source fans, etc, that prefer it to iOS. (And that still leaves tons of geeks preferring iOS).
If you need any proof that the majority of Android users are not that technical, just check these "relative number of active devices": http://developer.android.com/about/dashboards/index.html
Half a year later, only 10 percent have the latest release. And over 50% are two releases behind.
Neither the majority not the minority of Android users are much likely to buy a programmers' editor for their Android phone or tablet.