Keep it mate
I have a same spec 500 and use it!
You can use the car hard as long as you look after it, and when/if you wanna sell, it really won't affect the price tbh.
I felt the same as you at first, but its so good having a genuine 500 with a genuine 500+bhp.
The car was built for one thing--to anhilate all opposition on the track/roads
I always get stupid comments from people saying I am crazy for bringing out the car in poor weather and for using it hard, but its very well cared for and I always service/fiz any problems without delay.
You only live once