Don't Get Cheesed.
Get a Brie-lliant Game Tip here.
Cheese Shoppe at Digby
In case you missed this, Cheddar costs 20g in Digby compared to 10g in the Town of Gnawnia. Refund value is still at 10g.
Maybe this was a hint - some mousehunters have reported interesting catches with Cheddar in these areas. (have read posts about moles and widows)