My take on it is it depends what you want to achieve with a re-map.
If you want to get the max performance from the car then go for it.
Payback on fuel economy is not worth it in my book, 2 1/2 year return!
Makes the car easier to drive...maybe.
All good reasons to get a re-map as other have said.
I looked at it, and decided not to do it, as i enjoy my 135 TF as it is. I have enough power, it drives without any problems with pick-up, and has an exhaust not i am content with.
If i want to improve my TF I will replace it with a VVC, or move onto something completely different.
Spend the £200 on fuel and enjoy what you have!