At least a grand, maybe two.
Fortunately, it's been a very long time since I needed one.
But any reduction/omission of a conviction is a good thing as you get older.
Even if the mouthpiece costs way more than what he/she may save you on the day, it's an investment.
You never know what job you may want to apply for in the future and you want as clean a history as possible.
You need police checks for all sorts of jobs these days. It's only gunna get harder in the future.
Fortunately, some things aren't reported on police checks once they get to 10 years!?
I'm not 100% on that.
Maybe someone else here can provide more accurate info.