There's an inspirational story about focusing not on the cup but the coffee in it. I think picture frames represent a similar situation. Most of the time what we want is the picture that will go in them but we end up spending a lot of time and resources on the frames instead. I say if the picture is something you want on your wall, go ahead and put it there, don't worry about the frame!
Image from SimplyNaturalDecor.blogspot.com