Many of you may be too young to remember the last time this was tried...I am not. The issues involved in this practice are many and convoluted. Do you reward the teacher who has the most success? That would be the luck of the draw. if you have many students who do not come to school, or parents who are not supportive, you are up against a wall. What about the subject area you teach? The state and district expectations for your achievement?
Do you reward the teacher who spends more time at school? What about the fantastic teacher with small children of their own. If they are not investing extra hours of their own time are they less worthy or effective? What about the teachers who spend lots of money in their classrooms? Maybe you can't afford it!
The last time I saw this attempted resulted in teachers going into their rooms, shutting the door, and ceasing to share, help, and mentor new teachers. They couldn't afford to. It fortunately fizzled out after a year when it was shown to produce more negative than positive results.
Evaluations are unfortunately subjective, even though an attempt has been made to objectify them. You have a relationship with the administrators in your building, It could be good or bad. That is going to color your evaluation.
Until a fair, objective method is found I certainly do not feel that there is any benefit. The teachers I work with work long hours and work hard. the most positive thing our kids have going is that we work together. I would hate to see the money spectre interfere with that!