Yeah well in the UK fish cost even more so i shouldn't moan i were you. For a RTC here your looking about $55 mate. How much is a ray in the US now, say a nice and basic motoro?
The suppliers are also putting prices up, i don't think fuel is making a difference for you to be honest, your fuels dead cheap compared to us, thats why you've all got V8's lol, it would bleed you dry over here. Suppliers put prices up, so then distributors do and they all have to make a profit.
Some countries will have more expensive export/import taxes now as well as fish become more endangered. Like the Bangaii Cardinal, which is now more numerous in the ornamental trade than in the sea.