I have never printed with the APO EL Nikkor, but I know of a story of someone who payed a freakin' fortune for one (for printing 8x10). He is probably the best printer alive for what he does. Drew probably drools over his prints. (Just kidding Drew). By the way, if my memory serves me correctly, the 105 does not cover, nor was it meant to, medium format. I never chased down the Nikon A-E-N only because I have the Orthoplanar. What would be the point?
And I have to agree with Drew. Using a longer lens might be a bit impractical for many with small enlargers, but if you use multiple formats, the longest lens is really all you need. When I first started photography 24 years ago I had both a 35mm and a Rollei within a few months. I couldn't afford a lens for both formats, so I bought a Schneider 100mm Componon used at Helix and printed everything with that. To this day, the prints I made with that lens, even with 35mm, still stand up. In fact, I marvel at them even after all the knowledge and skill I have accumulated. Still impressive. I often print with it even day when I am using the Saunders 4x5 and don't want to bother with the Focomat. It makes perfect sense to use a longer lens on an enlarger that can accommodate it. Illumination is probably going to be perfectly even and alignment isn't as critical.