I'm a steady player of Gt5.
Level 37 A-spec, and I own almost 560 cars with no duping or glitching. I also play with a wheel
The Seasonal Events where a MAJOR breakthrough in extending the life of the game. I'm a little disappointed in the DLC as currently the only thing you can do in Spa is Hotlap.
Also enjoying the Spec 2.0 updates. I like cockpit view, so even blackened cockpits are a step up for me with standard cars, as the blackened cockpits are still modeled to fit the car, they just lack any texture details. And some of the open cockpit standard are plain brilliant, with a few coming close to premium car detail.