I would if I could: but cost is too high.

如果我能够，我是愿意的。不过本钱太高。

youdao

The large plane screen has been widely used at present, but its cost is too high.

目前，大平面屏幕得到广泛的应用，但其制造成本太高。

youdao

Divorce cost is too high for both sides, and the next generation of physical and mental damage was too big.

离婚成本太高，对双方和下一代的身心损害太大。

youdao

"The cost of our health care is too high to ignore,".

VOA: standard.2009.03.17

But how do you go about determining, or helping someone understand, whether the cost is too high?

NPR: Forgiveness Isn't All It's Cracked Up To Be

But critics say the potential human cost is too high.

CNN: AllPolitics - Big Issues Confront NATO At Madrid Summit

It's difficult to judge what cost is too high.

FORBES: Magazine Article