I find discussions over text long winded and can often be discussed more thoroughly with a simple phone call. I'm with you on video chats, although while I was living overseas for a number of years my mother insisted on it, which was fine. But I don't take phone calls when I'm surrounded by people, I'll head outside or into the corridor.
I personally just prefer phone calls for any proper conversations, the odd "hello, how are you doing?" type messages are fine with text but if I actually want to talk to someone, phone calls every time.
First things first: Everyone hears your end of the conversation with a voice call. I absolutely hate that: My family would pick up pieces (by accident or not) and when my ex's mental illness was worse, he would listen. Period.
But there are also other things: I can flush the toilet. I don't have to do as many "formalities" and I don't have to stop everything I'm doing to have a conversation with someone.
I figure communication goes on a sliding scale of intrusiveness. Video is the most intrusive (I don't know why old sci-fi wanted this!)... and text the least.