There's a guy in my Tuesday evening group that still hits some old Ping Eye2 irons, along with a driver that is about a 270cc head. Very old school essentially. He says he can't wrap his head around hitting a driver any bigger, and the irons (and I've seen him hit them) just work for him. He says he was on his high school golf team, and the way he connected on a 5 iron makes me envious.
I told him I have a set of those Ping Eye2s in the garage, but there was a reason I upgraded to my i3+ irons about 12 years ago. I've toyed with the idea of upgrading to some newer irons, mostly because I replaced all the wedges in my bag in the last 12 months, and I love the feel of the new wedges versus what I had. But the irons are a much greater overall investment, and for the most part these irons work for me.
But what you are referencing is typical. All these fancy new clubs won't change or help your swing get any better. It honestly doesn't matter what you hit, as long as it works for you. I've toyed with the idea of selling or trading in the Ping Eye 2's collecting dust in the garage, but I just can't bring myself to do it.
Go with what works for you, no matter what marketing gimmick out there insists what they are selling works better. Newer isn't always better. It just tends to look nicer and fancier.