(and yes, thanks for sharing that it is irrelevant to you, that does not make it a fact that it is irrelevant)
You misunderstood.
I said that
why it should matter to anyone other than you is irrelevant. The why is irrelevant, not the fact of a bad economic model.
Why people should care is totally irrelevant to
this discussion. They either care or do not. So, please refrain from trying to make people care. You've stated your basic point, it has been agreed upon as a thing that the current edition does not do well. Move on, and if you really need to purge these words from your psyche then open a new thread and start doing so.
3) Purchasing / enchanting items. I haven't seen players do this in 4E since it is so expensive.
I don't want to take the time to find the relevant citations, so I shan't, but I remember reading that this was intentional. In a large number of 3.x campaigns (enough so that the designers of 4E considered it a majority) the creation and purchasing of custom magic items led to rampant increases in PC power, an "arms race" mentality between various players (including DMs), and a generally perceived erosion of the fun to be found in the game.
The designers of 4E decided to prevent this problem by making players reliant upon items the DM hands out, without completely removing the possibility of players actually purchasing or fabricating a specific few items.
4) Plausibility. This is a major thing for me. The game has to flow. It has to feel quasi-realistic. Implausibility jars the game.
Agreed. I can't tell you what to find plausible, as that is largely a matter of taste and where one chooses to suspend disbelief (or cease doing so).
But why exactly does the Ogre have 5000 GP in his lair?
Why does it have to be in the Ogre's lair? Why can't it be a small cache of jewels (natural, placed, otherwise) that is in the area? Why can't it be some shiny rocks the ogre found and kept because they were pretty?
Though I have to admit, I don't understand what connection, beyond economic, this has to magic items.
When it hasn't made me want to retch from boredom (sorry, I just get that way sometimes), this has been a very interesting discussion KD. I hope we can have more in the future.