But if another bidder enters the fray, the price could spike.

But in high season - summer or winter - prices can spike.

Wholesale prices spiked in September after a year of near-stability.

Why did the airlines not see this coming, given that prices spiked last year, too?

In Chicago, government statistics indicate that the average price spiked to $1.79 a gallon.

Oil will take care of itself when prices spike soon.

As everybody knows, the price of gasoline also spiked after Hurricane Katrina.

Many financial planners say that for prudent investors, now is the time to deal with inflation - before prices actually spike.

If the unions do expand their strike, prices could spike next week.

Then, last week, people thought it would take a year, and prices spiked.