I am not a fan of the modern signature thing; too costly for what it is in the majority of cases. If I can get one for less at auction, why bother? The only items I get signed now are the really, really unusual ones that are not likely to have more than a handful of examples. Like this 1971 Virginia Squires TI Dr. J photo I had signed at a National a few years ago:
That, or something that has personal significance to me, like a card I pulled out of a pack when I was a kid.