Now that the lemons have been thrown, its time to make some lemonade for next time with some simple, solid suggestions.
I will suggest, if it is done again, nicely arranged displays of all of the actual guild reward items, especially all of the beautiful mounts and horses.
Small tents and encampments could hold displays of many of the more "house" oriented items.
Mannequins could display the armor rewards.
Specially created and placed NPC's could proudly wear the various guild reward titles (Sir, Lady, etc..) and run dialogues upon hailing, explaining a bit about guilds.
Those are just a few.