Back in the days when I thought I was a guy fantasizing about being a girl, I used to think I wanted to be a beautiful girl, but keep the male equipment.
But after I came out to my wife, and started wearing panties full time, and bikinis for swimming, I've noticed I really don't like having to tuck, or seeing the bulge, and I fantasize often about how much better things would look if everything was nice and flat down there.
I am only just starting hormones. If the hormones make things smaller down there, and I have an easier time hiding things in a bikini, then I probably will not get bottom surgery. My wife and I are still together, and I like women. Aside from that, bottom surgery is pretty invasive and carries some risk, especially for those of us who (like me) are a bit older. And then there is the need to dilate every day.