People often conflate tax credits with tax deductions. They're different!
A deduction decreases your taxable income, but a tax credit directly reduces the amount of taxes that you owe.
If you get a $1,000 deduction, you can expect to save about $250 in taxes (if you're in the 25% tax bracket).
However, a $1,000 credit will directly save $1,000 in taxes, regardless of your bracket.
All else being equal, credits are much more valuable then deductions.