Copies of the CD can be purchased at cost price.

这光盘可按成本价购买。

It's almost cost price.

这个几乎是成本价了。

It's cost price.

这可是成本价。

That's almost the cost price!

这几乎是成本价了！

Sorry, it's almost the cost price.

对不起，这差不多是成本价了。