You just nailed it. I liked the mysterious feeling one would get from much of the 1E art. It was just there, often without much explanation. A small scene in some shadowed dungeon or lowly field on a windswept plain. Like some rough sketch made of a real event, one long forgotten, you would look at it and try and determine what they were thinking, what was happening? It really captured the imagination - something you can't do where you just have cartoonish looking (sometimes by style, sometimes by content - lots of buckles and spikes in armor being the proverbial example) iconic looking straight at you in a portrait that makes it clear the only thoughts involved are "look at me, I'm a cool iconic." There just isn't any mystery there. There isn't anything to capture the imagination in quite the way you could where there are so many questions left unanswered in a scenic artwork (as opposed to a portrait). Perhaps that is the big distinction - the 1E books had many "scenes" of indeterminate nature while 3E just has lots of illustrations / portraits. The style just makes it that much less palatable to me.