Player values only increase or decrease by these amounts, as meantioned in a previous post:

-3, -2, -1, 0, +1, +2, +3

I have three players that aren't playing tomorrow, so I don't lose them at the price I'm paying. Of course, they're price could go down, and I'd have lost potential points. But I'll take the rist - I can't possibly do any worse, right?