I don't see where I said anywhere that the junglas would go years without sharpening? Also, I have sharpened my junglas, on the edge pro. I said it didn't need any true sharpening after many outings. In other words, I didn't need to take it to the stones and reset the bevel. A few swipes on a ceramic and the strop and you're back to shaving sharp. I find this to be true for many steels. I only have to use stone (usually for me sandpaper over rubber) when I wait way too long to touch up, or if I damage the edge).
And as far as INFI goes, I don't care what the composition is. It's edge holding ability is greatly exaggerated on this site by fan boys. I have seen many quotes the INFI will keep a shaving sharp edge near eternally, or through 10 years of skinning, or breaking down an eternal pile of cardboard. My experience is that it is a bit better than some steels at basic edge retention. There are high end steels that will spank it in just this category. I find that after normal use, I need to hit the edge with a strop.It is the all around balance that makes it such a hard use steel. Very chip resistant (tends to roll, even at higher hardness, so the steel can be realigned, rather than having to grind chips out). The steel is pretty stain resistant, so it does not need to be coated. The steel does very very well in impact and flex stress. It is not magic, it is simply a great all around steel, that edges out basic steels in multiple categories. many High End steels will beat it in one area or two. There are lots of steels that will edge out Infi in straight edge retention (D2 would be a great example, especially with a good heat treat). Harder to sharpen in the field, so it is a trade off. Infi is just a good steel, or a bit better in every area. With most steels you are making a compromise in one area or another. Infi is just a great well rounded steel. I have steels that edge it out in edge retention, but if I smack a rock, or chop dirty wood, or hit a nail etc, it just takes longer to fix the edges. I was chopping some wood, and noticed I hit a rock (chopped a small pea sized stone in half and it took a few licks with a smooth steel, and two strokes on a medium stone, then the strop and it was good as new. I have done the same with a couple of different steels, and had to do more work to fix the edges.