Golfers with 15+ year old irons... What are you swinging?

I was thinking about this yesterday as I saw a post about a set of Ping Eye 2s, bag, and a mixed set of woods being worth $150. Perhaps I was naively thinking that advancements in engineering, materials, etc., could end up dating irons quite quickly (say every 5 years or so). And judging by the "new clubs" posts daily, I was under the impression that a lot of golfers are upgrading their gear quite frequently, and I was the weirdo swinging 30+ year old irons.

I'm still swinging Tommy Armour 845s Silver Scots as my irons. I just got them regripped and they're swinging beautifully for me. I wish I would've upgraded to a mid-size grip sooner.

So, yeah. Who out there is swinging 15+ year old irons, and what are they?