If you don't mind, I'd like to ask for a little clarification. Would you like for a very high end weapon to specifically drop, or would it be ok if you obtained one of these weapons through another method? (crafting as an example) Is it the item itself, or the financial wealth that is more appealing to you?
*edit* I'm interested in everyone's feedback on this subject, so feel free to chime in even if you're not the op.
Personally I prefer to find it drop. When I use the AH to primarily upgrade my gear, there's no excitement there, there's no thrill of finding that godly item that the game thrives on. The problem in the game is NOT that we don't get that Godly item, it's that you just feel like the odds are overwhelmingly out of your favor that you ever will.
In D2, the system was simple: You had two rolls that had to collide, one for the item level (Normal vs Hell vs Nightmare), and one for the magic level (rare vs legendary). You could see how close you were to getting that godly item. It was still incredibly rare to get a godly item, but you always felt like you were close.
In D3, you needs to roll item level, magic level, and then get 4-5 rolls right on the affixes to get a godly item. So you might get the item level and magic level (i.e. roll a legendary), but you're still only 1/100th of the way there, and so it just is continual disappointment.
I made a suggestion in this thread to resolve the issue:http://us.battle.net/d3/en-us/forum/topic/9551455092#1
Basically, create a new class of items that has a higher change of being Godly, but make them drop as BoA (see the part on Hellforged). The way it might alleviate these people's concerns is that it brings back that D2 feeling of having the CHANCE to roll a Godly item, but at the same time keeps them out of the AH.
Lastly, on the topic of crafted items, I prefer that there not be any more godly/BiS items that can be made from craftables, like the 4 patterns added in the recent patch. The reason is simple: Crafting is just a glorified gambling system. For gambling, you go out and acquire gold and sink that gold in the once in a blue moon chance you get something good. Crafting is no different, just replace gold with gold + mats.
It's fine to have a crafting/gambling system in place, so long as it is supplementary to the game. Because when crafting becomes the primary goal of your character, then what you are doing is grinding, not playing, and this game shouldn't be about grinding. No one will get excited that a Demonic Essence dropped, no one will keep playing the game for hours on end to buff their bracers by 3 strength, or get one more gambling roll.