Board Thread:Game Discussion/@comment-198.246.80.254-20150629175154/@comment-208.184.141.147-20150629182437

It is not that fame points become less powerful, it is that the game keeps increasing the number of points that are required to level up so that the ratio of fame points to GCs earned (which also goes up as levels increase) remain roughly the same. Youy might check out the "Fame Chart" page on this wiki, but the takeaway (for me at least) from that page, is that on average GCs cost a little over 6000 fame points (under 6000 when you first hit a level that provides more GCs and over 6000 as you approach the next increase in GC point). To maintain this ratio, the fame per level up goes up about 600 fame points per level.

The good news, if this is correct at your level, is that fame points are not becoming steadily less powerful. The bad news, if you thought FM was doing you a favor by providing more GCs as you achieved higher levels, think again. They are just increasing the interval before you get your pay out, but have to work just as hard for each GC as you did before.

The last upshot of this is that not only is it worth it to pay a GC to double up fame for the 10-lap LeMans races, but it is in fact worth it for any race you run where you are confident you will win and the reward is over, let's say, 6500-7000 fame points (and about half that on a double-fame "weekend"). So long as you are not worried that there will be a finite number of GCs to earn in the game (i.e., I'm not sure what happens when you get to level 1000), you might as well always spend a GC in a situation where you will get back more than its cost in reward.