Kevin, welcome to the forum. To each his own but I have never made a pistol purchase based on the grips on the gun from the factory. It's like the tires and wiper blades on the new car from the factory, I always plan on running them for a while and putting on better ones.
The purchase of the Rohrbaugh is to fill a need, for a pocket pistol with more power than a 32 or 380, and the R9 is the only one in it's class, and it is a class act with some of the best customer service you will ever see.
Bottom line, it's your money and you can spend it as you see fit. If having the best pocket pistol money can buy is over shadowed by the lack of CF grips, in my opinion it's your loss.
John