I can't say I'm totally surprised by the price paid. Burker brings up some good observations, maybe a crossover appeal here, Americana, toy collector or maybe a Sears Roebuck collector might have had their interest whetted.
And, this appears to be a very early glove. Can't tell if full web or not, but one-inch maybe. So could be 1900 to 1910 or so. That's early for a box and glove in somewhat untouched condition. Box has a few stains and silver stamping might be a bit faded but these early total box and glove combos don't come around that often.
I was a little fearful after looking at the picture and seeing the glove resting on a stand on what has to be, I would think, a fairly fragile box.
Glove might be lightweight.
It seems as if prices on the really nice conditioned gloves is on the rise to me, also in the Hall of Famer areas, big name HOFers.