My newest clubs are pretty old. Maybe 2006? I don't really remember. The other day, just for the heck of it, I played using my old Bazooka Iron Woods. (2i-LW) Shot my normal score. Those Ironwoods are probably 15-16 years old.
I don't think at this stage of my life, that a new set would make that much difference.
My irons are from 1978, driver and woods from 2004 (same G5 as you)....at my current playing level, I don't feel like my clubs are holding my scores back. I will be updating my wedges to something designed this century in the near future but I'll probably regrip and keep playing my grandfather's old Eye irons a couple more years.
There's something to be said about being familiar with your equipment too. The control you talk about with your driver comes from hitting a lot of balls with it and getting to know how it responds to different things. That's tough to give up considering that it could take weeks to develop that relationship with a new driver...at least that helps me cure the new toy bug and keep the wallet closed. :)
Willet's bro and Phil Mickelson would be wise IMO to reign in their need to be the centers of attention and let the focus be on good golf.
Most of us get enthused to see an exciting golf event between two highly talented teams of golfers. A good rivalry can be conducted with respect and class. At times some U.S. player rhetoric was disrespectful ('not fit to caddy for us') of the opposing team. Not a great moment for the U.S. team image, IMO. Willet's brother's comments are right in line with that kind of jingoism that I agree with Jack Nicklaus does not belong in the Ryder Cup. Competitive fire, okay. Enthusiastic, partisan crowds, sure. Soccer mob mentality, no way.