suggest make the store only potions available through in game vendors for astral shards.
just like hirelings and amenities - simple enough to continue the coding - create separate tab for Buy (AS)
just like hirelings and amenities - include small discount for using astral shards to purchase
benefits to players: easier and faster to buy potions like mnemonic, guild renown, slayer count boost, rez cakes, and experience.
benefits to turbine: less load on store - upfront purchasing of astral shards, increased sales.
of course all potions would still be bound to account on acquire.
(further could include other items in appropriate vendors)
Constructive comments and feedback greatly appreciated. Trolls and flamers go on a date and don't come back.