1. It cost a fortune. 2. It cost an arm and a leg. 3. That's a rip-off. (= overpriced; far more expensive than it should be) 4. I can't afford it. (= I don't have enough money to buy it) 5. That's a bit pricey. 6. That's quite reasonable. (= it's a good price) 7. It's 20% off. (= there's a 20% discount) 8. That's a good deal. (= a good value for the amount of money) 9. It was a real bargain. 10. It was dirt cheap. (= extremely inexpensive) More Travel English: http://www.espressoenglish.net/travel-english-conversations-in-the-airport
If marine animals arent your cup of ice cream, perhaps a healthy alternative of seaweed is preferable? Seaweed is packed with minerals, some of which are medicinal, which probably goes a long way in explaining the taste.