Laminates were retired in the mid eighties, I think?
So they're ten years short of the golden years of Irish Railways in the mid nineties!
I'm sure that there was a wonderful thread in 2015 or 2016 on the pros and cons of the IFM laminates, which made the most interesting reading for a lurker, and encouraged me to avoid signing up to the forum for several years.
Either way, RTR Laminates are already out there, so it's time for Mk4's, then Mk3's and then Park Royals!