MSB Golfers: How often do you buy new irons?

I am on year 5 of my irons. I'm about to upgrade.

oh, look. They anchor golf threads.

All personal preference. I hit my Tommy Armour 845s for well over a decade and still have them in my sons bag. I've had my Clevelands for a year and not looking to switch. You could be changing irons yearly if you went with every new improvement iron that comes out. If you aren't a pro and play for enjoyment and you hit your irons ok why switch......unless of course you are on OT baller or Threeputt.