Blade sharpening in Aust.
There is a standard fee for sharpening blades, and its worthwhile as long as there are no teeth missing.
The reason for this is the fact tooth replacement puts the cost beyond a new blade.
That being if you buy budget priced Blades in the first place and around $25 to $30 AUD.
As my timber is either massively hard (Iron bark) and the likes or recycled packing/pallet crate for soft wood , I choose to keep my high cost blades for special occasions.
I  do have blade sharpening machine with a diamond blade but only use it when absolutely necessary .
 I have a tooth missing on my finger jointing set but loath to have it repaired for the expected cost.
I think it was about $150 AUD when I bought it and I guess when the time comes I will have to open the wallet.

Regards Rob