All of my girls are fixed. I wouldn't have it any other way. They are just pets and I don't want to deal with that heat mess. Plus they are happier to not have the mood swings or PMS (yes, they get that). I don't have any males but if my girls weren't fixed, i am sure all the stray males in the n'hood would be hanging around.
I have had a hysterectomy and feel i am healthier and love knowing that i don't have to worry about cancer from that area. Just because I had all those parts in my body, doesn't mean that i had to keep them there. I feel the same way with my girls.
Of course, you can do what you want. I hope your male doesn't turn mean and aggressive. Even Cesar Milan says that if an intact male doesn't breed like he is designed to do 2x year, they can get very aggressive with all those hormones and no release..just like humans. If you are going to show, he will have to stay intact.
The decision is yours of course. Research and ask questions and make up your own mind.