Sure you can. I routinely pay more for things when I know that the proceeds are going to a good cause. The way I look at it is that it's both a purchase and a d

Sure you can. I routinely pay more for things when I know that the proceeds are going to a good cause. The way I look at it is that it's both a purchase and a donation. Say I see a cool T-shirt that some charity is selling for $25. That's pretty steep for a T-shirt. I'd probably only pay around $15 for a T-shirt normally. But if I like the shirt and like the charity, I might buy it anyway. I view that as a $15 purchase and a $10 donation. Stuff like that happens all the time.