Going off the comments on Ruth, I think this card is one that has a lot of breathing room left to it. If people are correct about Ruth in general, then it'll mean that his lesser expensive cards will inevitably become expensive as people move on down the line to acquire any Ruth at all for their collection.
Right now, this card is still pretty affordable. Especially when you consider your options for the grade whereas most of us would be relegated to either Authentic, 1 or perhaps a 1.5 when it comes to picking up a 33 Goudey in your price range:
