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. That’s a bit pricey.
5. That’s quite reasonable. (= it’s a good price)
6. That’s a good deal. (= a good value for the amount of money)
7. It was a real bargain.
8. It was dirt cheap. (= extremely inexpensive)