I worked as Nokia's UK and Ireland technical support, both tier 1 and 2, and you are entirely wrong.
Almost no users, including people buying smartphones, have any idea what a phone operating system is. Most users, including people buying smartphones, struggle to tell you what their computer operating system is.
Phones, including smartphones, are not sold like computers. Lots of people buy smartphones because they have the best cameras, or because they're the 'top end' phone, or because 'they want a blackberry' and can't tell a Nokia E61 from a BlackBerry device.
Also, at least in the UK, there's a lot of smartphones - including Android devices - being marketed at the general consumer market. There's not really any phones sold to 'technical' people - the distinction you want to make is 'consumer' versus 'business'. Windows Mobile and BlackBerry are 'business' (traditionally). The iPhone is 'consumer', albeit high-end.
Android phones tend to be consumer-focussed, competing against the iPhone. There's a few Android phones that are priced to the mid- and low-end of the market, and there's a lot of Nokia S60 smartphones in this range. (A lot more than Android or iOS, actually. Nokia are still the #1 smartphone manufacturer.) Most people buying these devices are 'non-technical' and if they understand the difference between 'Android 1.5' and 'Android 2.1', they just don't care.