Or you can do that. As you said, Things that are worth doing are never easy. (The question might be if it is a linear scale, and some things can be hard despite not being worth it.

)
I'm also stubborn.
And that's the reason why I am doing the "hard" thing to explain any "immersive deficits" for myself, but not doing anything more. The system is worth it to me.
Do what works for you, yo.
Yes. But I see a lesser "lack of percetion" in 4E.
Fair enough.
I think it's more I like a different kind of complexity. The complexity in 4E is mostly "emergent" - the individual rules are simple, but if you use them in game, they can become very complex.
I haven't played enough 4e to see if this is true or not.
But I also feel that we're way too often running in circles, reiterating what was already said. There is no merit in that. But here I am, fueling the very cycle...
It's four in the morning, local for me. I have three things I could be doing right now.
(1) Playing WoW.
(2) Working on my homebrew.
(3) Wandering the tubes.
I already played enough WoW for the evening, and I'm sort of procrastinating on working on my homebrew.
So I've got little better to do with my time than retread old ground. Not only that, but perhaps - in the back of my mind - I think that, if we keep going over these things, I'll eventually tease out some truism of game design, which I can then apply to my homebrew.
My first draft would probably have avoided your question, but would come close to aspiring motivations to another poster. I chose to use a different phrasing.
Probably for the best?
Remember, nearly every "hard-core" gamer (and most on these board are exactly that) has tried to create his own system. But then, Gary Gygax, Monte Cook and Mike Mearls were also just hard-core gamers. So stay optimistic (you can get it done). But stay realistic: You will probably not create D&D 5E...
Maybe 6E...
To be honest, I have not thought that far into the future. Right now, I'm in school for computer science and philosophy, working on a homebrew game system, and trying to keep my life from falling apart around my ears. The idea of turning writing gaming stuff into a job has occurred to me as a possible course of action, but I have very hefty doubts as to its plausibility.
Regardless of whether or not it'll go anywhere, though, I need something to tinker with, to keep my mind occupied. Having a homebrew system around to mess with, even if it never goes anywhere, keeps me happy. There was about three months after the announcement of 4e where I didn't do any mechanical tinkering with 3.5, and it sort of drove me a little nuts.
Absolutely. Sometimes it helps to have an existing system to point out elements you like or dislike. (Wasn't that essentially true for you? You played 3E, then read on 4E, disliked it, and thought harder about 3E, and found that it wasn't what you _really_ wanted, either?)
No essentially about it - that's exactly what happened.
I'd grown a little disappointed with some elements of 3.5 over the years, but knew the system well enough to adapt and move on. 4e came, I looked at it, disliked it, tried to understand why I didn't like it - and then applied that same sort of thought process to 3.5.
My homebrew started out as a weird mix of 3.5 and 4e design elements, with some other things thrown in (more involved crafting and a working economy are the big two). At this point, though, it is rather different from both.