I think that almost everyone agrees that sticker autographs for the most part look out of place on most cards, but besides that fact I think that the other major issue is that it limits the player from signing his complete full signature. A prime example of this is Marshawn Lynch's signature on any sticker autograph it is small and plain, but bigger (albeit hard to read) and more detailed when signed on card.
So my questions is whether card companies pay the same for sticker autographs as they do for on card autographs?