Like others have said before, no need for a career mode, if we have so many leagues to race on. I, for example, am now racing in OLFSL and the portuguese SRP-LFS championship. I´m not a fast driver and don´t have much time to play, but this way during the week I´m training for the race in the weekend. Trying to get faster, adjusting the setup, thinking of the better strategie for the race... Besides that, I´m changing the combo I play every week, no time to get tired of racing always the same combo over and over again. So my advice is this, if you race with a clear purpose and objective, it´s much harder to get bored of LFS.