A while back on the Capcom unity forums I made a thread about Granny's Stock Upgrade 1 and how her shop never upgraded, and one of the admins (CHUMP) said that Granny gains Armor Stones and Honey "later in the game", well, unless he's talking about HR100 or something, I still haven't seen anything new in her shop at all.
Can anyone actually confirm if they've seen Armor Stones in Granny's shop? --- PSN and NNID: CrimsonSamuraiX
In the Japanese version there was a DLC patch that upgraded Granny so every so often her store would double in size and Armor Stones was one of the items for sale. We haven't gotten that DLC yet, which is probably what was meant by "later".