I'm about to sell off a capital asset. If I get full market price I can deduct the cost of sale (fixing-up, commissions) from the gross. But I also have to add back in the "recapture" of depreciation over the years. Doing it that way will yield a modest profit which will be taxed at 15%.
But if I, instead, donate the asset to a charity I can take the full market value of the property as a deduction against other income. That would allow me to entirely cash out a major retirement account in the same year and apply that deduction against that. Result? Over a period of 2-3 years (credit will be too great to apply in a single year), I can avoid taxes entirely on the retirement cashout.
Then the charity can sell the property for whatever they want - price it low to get a quick sale - and they'll be in by whatever they get which is something they never previously had and it will not impact the donation value I declared since the ultimate sale price is out of my control.
At the end of the day I'll have a few bucks less than I might have had through just selling low myself but I'll have the satisfaction of using money I don't need to help some charity whose work I value while denying a chunk of money to Obama & Associates.