RE: Why Speak?
I fully agree about your reasoning for choice for online communication. Though that would also depend on the situation. If the subject is important and the correspondent is not getting it or taking it lightly, I would prefer face to face conversation or at least through phone. This happens mostly at work.
I have been into cases of buying something that was not planned. When I realized what was happening, I came to the point if being snub because sales people were literally tailing me.
And yes, I have also been suspicious if people suddenly become serious with me when they did not use to. During those times, I realized they come forward for a serious talk as if we are close because they need something. Then we go back to being just acquaintances afterwards. It is sad but I learned my lessons then.
You're right. There are a lot of times where hashing things out over a normal conversation is a lot more efficient than sending dozens of texts back and forth. But we get so used to the convenience of texting that it becomes psychologically difficult to make that phone call.
I agree. And sometimes cost of voice services or calling can be another hindrance.