to me a cage says track car, but it has to be a full cage, and it makes the car an absolute pig to get in and out of if you have a full cage.
personally i wouldn't put it in, the car doesn't need it and it won't enhance the car,
but at the ned of the day its your car and your choice on what you do with it. if your planning on doing lots of shows with your car and its part of the look that your going for then its up to you on what you do.
i ahve mods on my car which people don't like and i'm about to fit another that has no performance benefit, but its red and suits my engine bay
just have a good think about it, and think about what your overall goal is for the ca rwhen its finished and see if the cage really makes that final big difference. if it does then fit it, and possibly invest in a flame proof suit as i'm sure some people on here will have an opinion. but thats the point of an open forum.