It has a lot more to do with the player. Big pairs get dealt to the button as often as they get dealt under the gun. If a tight player raises from the button for the first time in ages, I'm mucking my 87s. If the top stack does it for the fifth time, I'm pushing. I'm pretty much always pushing 99 or AQ there, if the stack sizes are right, though- that's not a re-steal, it's a value bet.