radiofree

I am due for a new bike soon, something I will be commuting on daily. I know its going to be single speed or fixed gear because every time I use a bike with gears, I just end up leaving it on the highest gear, I dont use the extra gears so theres no point in keeping them. It seems like a lot of people are riding fixed gear bikes now (at least in my generation), But I just dont see the point in a fixed gear vs single speed. Whats wrong with having a choice to coast, what is the point of having a fixed gear bike? If someone could please enlighten me as to what I seem to be missing that everyone else gets.... (I am not trying to troll, I am legitimately confused)