What would be the benefit to an additional few thousand likes anyway, other to try to get over on the GoogleMan??
I have avoided the urge to purchase bulk "likes" in this way.
The GoogleMan has his eye on EVERYTHING, and factors in your Facebook presence somewhere in it's ranking algorithm.
It does not seem to be the case now, but I can see the GoogleMan frowning upon any irregular/erratic/unnatural influx in anyones "likes" totals sometime in the future.
I have learned the hard way to never try to fool the Googleman in any way.
Your relationship with the GoogleMan is the most important relationship to build and maintain.
Any short term benefit will fall short in comparison to the losses when he catches on, and bites you in your ass.