IGN has some nice articles about the '80's adventure games, and this one is talking about the history of Quest for Glory. The bulk of the discussion is about how Sierra wanted to infuse some RPG elements into their adventure game, and there is an interesting idea on page 2:
Unfortunately, this sense of building up your character tends to detract from the overall story, even if it does provide a respite from getting stuck at a particular puzzle or point in the game. Without a leveling system in place, skills improve the more they are used. In an RPG this makes sense but feels weird and out of place in an adventure game.
Take, for example, a puzzle you come across where a local potion lady has lost a valuable possession that you can see sparkling in a tree outside her hut. The solution here is pretty simple, with various rocks and pebbles adorning the nearby ground, you need to simply pick one up, throw it at the tree, and knock her long lost trinket down onto the ground.
Depending on whether or not your character is a fighter or mage this solution can actually take a few minutes of picking up rocks, throwing them at the tree, missing, and then repeating the whole sequence. And only because your character’s throwing ability was initially too low to hit the target.
This means that it could take at least a dozen tries to get your throw right. Which, as a solution to an adventure game puzzle, makes little sense. With a few moments like this, Quest for Glory is more miss than hit when viewed through an adventure gaming lens. It relies on the sort of repetitious mechanics that are better suited to an RPG, where solutions are usually only attainable well after they’ve been worked out.
I bolded the part the I found particularly interesting. It is one of those points that you always knew, but you didn't realize it until it was pointed out. I have played many RPG video games, and this statement seems to hold true for many of them. Already knowing what you have to do, you just sit there and grind until you can actually do it.
Anyways, I thought the distinction was actually quite interesting, and wanted to know if other people felt the same way.