Graphics are not a Housing System.
You're looking at games that are upwards of 10+ years old, built for older systems, with much lower hardware specs... running hardware (servers, broadband connection speeds, etc) that were also much lower. Yet, those older MMOs managed to pull off what they did, for all characters. Meanwhile, SE can't pull off what is really a pretty basic housing system, without leaving many players and FCs waiting and hoping for the chance to get one.. somewhere down the road. If they're lucky.
Well, your questions are completely besides the point, and are not at all the big question. More of a deflection from the main point, really.
All of those things being tied to FC housing are great.. if you're fortunate enough to be in a FC that has a house, or are able to get one yourself. But many can't.And that is the key problem here, which some people seem determined to argue around, make excuses for, or otherwise avoid addressing.
However, regarding what you can do in those housing systems.. I'll cover EQ2, in particular, at least as much as I remember from last time I played...
Well, for starters, in EQ2, if you want a house, you can actually get one. You can get up to 25, if you want. That alone sets it apart, without even getting into anything else.
However, you can have crafting stations, a huge variety of housing items (walls, stairs, etc), decorations that can be rotated and scaled, to suit your likes/needs, expanded storage (which you can increase significantly by using large storage boxes), NPCs to buy/sell goods, Market Boards to sell your wares from (and others to come buy directly from, to avoid broker fees), you can have teleports between all your houses (up to 25 of them), making hopping between them very easy. You can have furniture that lowers the upkeep cost (of course, only relevant because EQ2 has them).
And of course, there's the same reasons many people enjoy housing in any game - it gives them a way to express themselves creatively, and to give them a place "of their own" online. In EQ2, you can also have pets in it, which will interact with you, and with each other. There's a very large, and very active community that's developed around EQ2's housing, such is its importance and relevance to the game, and its players.
EQ2 has had all of that stuff for up to a decade or longer... and it's been available for every single character created in the world since the beginning.
Hypotheticals are never the basis for a debate or meaningful discussion. However, all those things, if they were implemented, would be separate systems, apart from the Housing itself, and could be accessed from outside a FC House, and without the need for a FC house, if SE decided to implement them in such a way. SE is already making this possible with airships and chocobo stables... both of which have been announced as becoming available even without a FC house at some point in the future. This is one of the concessions it seems SE has had to make, as a result of their poorly designed/implemented housing system. If everyone were able to get a house, such limitations wouldn't have been an issue to begin with.