I generally use more complex alloys, for various reasons. But as so many others have said, if 1084 was the only steel I could ever use for cutting implements, that would be just fine. It's really tough, it can get very hard, it takes a
lovely crisp scary-sharp edge, you can etch it or develop a hamon in it, you can draw back the temper on the spine or tang if you want, you can pattern-weld it with lots of other cool alloys... It just plain
works.
1084 works well for beginners because it heat treats easily... That's it. It is not inferior, it is perfect... the "perfect eutectoid".
There's a
lot to think about, and study on, in Rick's deceptively-simple statement. :thumbup: If a person poo-poo's 1084 and doesn't understand why/how it can work so well, I have serious misgivings about whether or not they really understand steel and HT at all.
The chemistry is indeed, perfect... everything you really need, nothing you don't (including overly-high carbon levels that lead to all sorts of complications with HT protocols and internal structure). What's
not in Aldo's 1084 (contaminants) helps a lot too. If an ancient Viking or Japanese bladesmith had the supply of clean, reliable steel that we do, they would be very, very happy... and very wealthy.
Having said all that, perception plays a big role in actually
selling knives today. Even in the same class of simple carbon steels, some alloys are "sexy" and some just aren't. That seems dumb as a bucket of sand to many of us, but it's true.
For instance, in all honesty, I can barely tell the difference between the knives I make out of O1 and the ones I make out of 52100. In fact, for reasons I do not understand, 1084 actually outperforms both O1 and 52100 in corrosion-resistance, while holding quite steady with them in every other sort of knife-related testing.
All three alloys make
great knives, and 52100 and 1084 are actually a good deal less expensive than O1, so who cares? ... but 52100 knives sell better and command higher prices than the other two - because of "hype" and the fact that people know it's also used to make ball bearings (all of which "perception" comes almost entirely from one maker/author). *shrug*
Incidentally,
I'll bet you lunch that in a blind challenge with blades having the same exact dimensions and hardness, almost none of our clients and very few makers could tell 1084 from O1 from 52100 from 1095 from W2 from L6 when it comes to basic general performance and durability. 