Moved on? No, hell no actually.
Although I've been playing tons of iracing lately, and other sims, GT5 is still my favorite just because of it's massive variety, it's quality, and although it doesn't have the absolute best physics, I still enjoy it's physics more than most sims.
Personally I think netkar pro has the best physics and force feedback, that sim is just incredible, but it's also lacking.
Iracing has the best racing, but it's missing a ton of my favorite tracks, it's expensive as hell, and the safety rating is driving me insane.
GTR 2, great sim, I do like it but to me it's kind of boring knowing that I have much more realistic sims on my PC, and it's less realistic than GT5 in some cases.
Same thing with rfactor, except rfactor does have all those mods I love but the online community is terrible. Everybody either password locks the servers, or uses crap mods that really aren't fun to use (like the renault megane mod people keep using).
LFS, I love the physics but using cars that don't exist on tracks that don't exist is pointless to me. Why would you want to simulate something imaginary? It sucks too, because in my opinion, LFS has the best physics besides netkar, and by the best graphics with the least FPS loss of any PC sim even on a crappy computer like mine.
Richard Burns, absolutely incredible sim, but it's too friggin hard lol. Well it's really not "too hard", it's just something you have to get used to (just like real rally racing), and I simply haven't put enough time into it.
GTR Evo, (refer to GTR2)
pCars, I have spent over 30 hours of time playing it, and although it's an improvement over shift 2, it still isn't very realistic and has a bit of the same feel of shift 2, which is bad. I actually do like shift 2 and will probably get it when it's fully released, but I'm quite shocked to see so many people here mention. Of all the "sims" you could play on the PC, pCars is probably the worst of them all. The graphics are overated, way to flashy, saturated, and definitely not better than GT5 and it is a total menace to your computer even if you have a supercomputer. It performs terribly even at low settings. And like I said, the physics aren't that good, neither is the FFB, so I really don't see it as something to beat GT5. Really the only reason I played it so much is because I like the cars, and my friend let me borrow his computer to play it while he was on vacation.
The thing with GT5 is that it's only as realistic as you make. I think it can go from an arcade sim like shift 2 or F1 2010, to a semi-pro sim like GTR 2. It all depends on what tires you use, whether you use damage and tire wear, aids, etc. I feel with the proper tires for the car you're driving, GT5 can hang with and sometimes beat some of the PC sims
If you race with leagues, you can have some of the best racing on any system in GT5. The amount of cars to choose from, the tracks, THE BEST VIRTUAL NORDSCHLIEFE EVER!~!!!!!!, not to mention the graphics, the interface, the options, COURSE MAKER!!!!!!!!!!
I really can't understand how anyone could "move on" to anything else. I enjoy all sims, but GT5 and iracing and netkar are at the top of my list and will stay there until Assetto Corsa comes out, and even then I won't "move on", I'll just probably change my priorities.