I think this thread presents a dilemma.
The 13mm, 9mm and 4.8 mm Naglers were introduced 40 years ago.
The Wide fields, all but the 15mm, 38 years ago, The 15mm and the rest of the type 1's, 36 years ago. The Type 2, 34 years ago.
The Paracorr and the 35mm, 27mm, 22mm and 15mm Panoptics were all introduced at least 26 years ago.
I have the 4.8 mm Nagler and use it frequently, it's an excellent double star and planetary eyepiece. I have the 32mm and 24mm Wide Fields. I have the 35mm and 22mm Panoptis, they're part of my first string eyepiece collection. The type 2's were part of my first string eyepieces until about 3 years ago.
But I have a hard time thinking of them as classic eyepieces, they are really modern eyepieces and the eyepieces transformed the world of eyepieces,
Maybe 50 years from now, someone can look back at them as classics but even though that 4.8 mm Nagler is a 40 year old design, it just doesn't seem like a classic eyepiece to me.