I had an iPhone 6 that broke recently. As it turns out, mine was the only one in our family without insurance (I had never damaged one previously, every other member of my family had). I told my wife I was happy to replace it with a flip phone for a while - I certainly use all the smartphone features but the higher end phones are just so damned expensive.
She went to Verizon and came back with an LG sliding keyboard model. "Fine", I thought. Until she texted me and I had to respond. Holy crap it sucked balls. First, it was in very bright sunlight and for some reason when you slid the keyboard out, the screen went dim and I literally could not see a single thing on it. Second, the buttons were about as big as a pimple, and my (apparently) fat fingers could not type without hitting at least one other key. Our first text conversation looked like I was about a thousand sheets to the wind, I don't think there was a single correctly spelled word in it.
I lived with it for about a week, then she bought me a new 6s Plus for our anniversary. To be honest it's too big but she said none of the local stores had the regular size in stock and I can live with it.
Before I went smartphone (iPhone 3s was my first), I had a non-keyboard model that worked great though pushing the numbers several times to get a letter for texting was certainly a PITA.