One of the features I use less in my smartphone is the phone... So much so I would be up to a data only phone plan if there was one. Not that I'm on social networks all the time. I don't even have the Facebook app on my phone. I do communicate a lot with my friends and family, by text, voice and video, using chat applications such as WhatsApp and Facetime. Since I live in a different country than most of my friends and family, having the tech to keep in touch is essential. I dated my now wife long-distance for a couple of years, we wouldn't be able to do it without Skype and text messages - it was in the pre-smartphone era. When I do am in the physical presence of my loved ones, they have my full attention and the phone stays on silent - as a matter of fact, my phone is always on silent. When I'm hiking, which I do as often as I can, I use my camera to take the good pictures, and my phone to take the ones I want to show people right away, but only after I spend enough time admiring the view. I also read a lot on my phone, news and books alike, because even when I don't have my eReader with me - which I usually do - I can access my books and news sources from the phone and catch up while on the subway.
We have this tendency to demonize the smartphones - or the smart anything for that matter - just like we used to demonize several other technological leaps. Mind you, Greek philosophers were worried about the uprising in literacy, because, according to them, writing things down would decrease our reliability in our own memories. So, it's not a new discussion. It's a fact that many people misuse the tech we have available and end up sucked into the virtual world. But that's their fault, not the tech. Smartphones are but a tool, neither good or bad in itself. It's the use of the tool that defines its quality. I believe I make good use of my smartphone, and I can be closer to my friends and family because of it.
So, no, I wouldn't switch to a phone like this, regardless of the price. I would rather be behind some initiative to change the behaviour of those who misuse the technology and grow apart from human contact because of it.