I still play every day. I play online as offline is SO BORING. I run in rooms with simulator settings (no aids, tire wear and fuel consumption on, real grip, weak slipstream, and full damage).
I use the DS3 as I am paralyzed from the waist down. L2 is my brake and R2 is my gas. In order for me to use a wheel I would need hand controls and that is more expensive than a G27. It cost $1200 to put controls on my car (can you say rip off!?!).
GT5 is what YOU make of it. It can be close to a sim or a full on arcade game. It is up to you to set rooms up and actually drive correctly. In my eyes, no other console racing game comes close to GT5, but that's my opinion.