Hmmm, I'll consider ten thousand (even though I paid way less).
Great, I'll give you a hundred thousand - so it's settled.
What?
____________

The evolution of sports contracts and player performance indicates a shrewd connection between the two. The story is rather banal with only a few variables here and there. Rookie prospect is highly touted and signed to a medium length, conservative contract with team. Newbie acclimates to the game at the professional level and either realizes full potential or busts out like almost every first round WR or QB. Newbie that realizes full potential destroys the competition year in and year out, steadily increasing until it becomes time to sign a new extremely lucrative deal (think Theo Walcott). Newbie buys mother an estate all for herself and totals ferraris without scathe.
That story is the first 1/3rd of a typical star player's journey through sports. Once a megadeal is signed enormous pressure mounts on the star player and expectations are formed. Player either crumbles under the pressure (very common, think Shevchenko, Recoba, Ronaldinho at Barca, Adriano until 2 months ago, Robinho perhaps right now, Van Persie (yes Jim, the year isn't over yet), Adebayor*, the list goes on.) or they flourish - David Beckham, That boy Ronaldo, Messi, soon to be Aguero. The rumors fly about these players. Dreams need to be met**, championships won, tangible things need to accomplished now that star player has proven his individual talent within megadeal - Zidane, Henry if Barca do things, Peyton Manning, Kevin Garnett, Beckham (he's kinda re-writing the journey isn't he, anyway).
Once the pieces are in place the star player enters the final third of their sports journey where they start to decline mostly because of age but also a bit because of motivation. Segway into the graph I made at work because I was bored.
The asterisk is where a majority of young prospects find themselves. They have a certain level of talent but it's hard to tell exactly where they fall because they're highly motivated by getting that lucrative contract. This is the state in which Arsenal exists - a bunch of young kids trying to eat. Well, not just eat, dine in a Maybach is more like it.
The blue/yellow area is invariably where most of the prospects settle into once they've gotten that paper. That is to say, the talent level they always possessed. The, "busts," are the ones who are near the bottom, overpaid and playing below not only expectations, but talent level as well. This is why you can't call Bendtner a bust - he's not necessarily playing below his talent level.
Anyhoo the upswing in the graph represents those players earning middle to high salaries already and suddenly experience this burst in talent. This is the effect of being in a contract year, or as Jim has once referenced (and rappers I believe), the Adrian Beltre effect. The boats, estates, limos and hookers aren't gonna pay themselves so these players turn up the juice for one final run at a big contract. Most of them stay in the trough and don't make it back up to their basal talent level.
Now we've reached the dollar sign point, enter Manchester City. Abu Dabi intends to create a team of superstars, players that have proven themselves to be the best in the world and overpay them to the point where overpaid doesn't really describe the situation. As it turns out, it's not about the money. Kaka showed that. Man Utd show that by keeping Cristiano. Buffon in a slightly humorous self-depricating way is trying to keep the order but Juventus too should elevate itself above the business centered sports world.

Either that or get relegated.
_____________________________________________
*who's turning point in his career will tragically be remembered by the thought of Wenger turning down a "747 full of money" for the striker. Hey Arsene, can we uh, fly that plane back?
**Dreams like going to play for Real Madrid and dating nice homely curvacious Spanish women that love to scream out, "OHHHH ses!, OH ses!, Ses Fah-breh-gas!! Ven aqui chico!