I jungle quite a bit, but I guess I'm a bit different about the "minion tax". If I get at least a flash I might take 1-2 minions depending on where I am and where the wave is. Often I'll just return to the jungle as I figure the laner has the lane where they want it.
If we get a kill, I'll often wipe out the minions to push the current wave into the tower so my laner can back, but if I get pinged to leave I will. I just will be much slower to return as I know that there is little/nothing for me in coming to the lane beyond the kill/assist gold and I tend to get 3 assists for every kill since I play tank junglers who don't do a lot of damage.
I guess I'm one of the more unusual junglers. I don't insist on collecting a tax, although offering me some will encourage me to return. I'm as greedy as any other player, I just tend to be accommodating to my teammates when I can be.