Its funny, you can just about tell when the games got harder on Stars when the Party kickoff happened.
Round about game 12.4k
Yes, I noticed this when I started sharkscoping a bunch of the $16 turbo regulars. All their graphs show nice profit, then immediately level off to breakeven territory. I even talked to one of these guys who is moving to UB b/c he said Stars is rigged now, and he also gave his brother's graph as evidence.