I would think you'd only wanna go with a race setup if it was a dedicated track car. Do you really want to strap in every time you have to get a gallon of milk? You don't wanna half ass it. The factory restraint/airbag setup is very good to begin with. Once you get rid of that you almost need a cage and Hans device, not just a harness bar. A lot of setups look safe, but will most likely cause more harm in a crash. All or nothing may be the wrong way to put it and it's not what I'm describing.
In the end I would think livability is going to be your deciding factor. If you use your car a lot for menial things, then the safety mods are gonna get old real fast. That being said who wouldn't want a baller race wheel?