The Crown Store offerings should be so good as to convince players to become Premium subscribers without detracting from in-game perks. It should offer UNIQUE, limited edition, non-bound items, services and abilities. Items would include dyes, mounts, weapons, apparel, rings & medallions, pets (basically any item in the game at present). Services would include replacing tattoos, hair styles, facial makeover, extra bank and bag slots, etc. Abilities would include crafting recipes, styles, etc. What would you like to see?
"One more drink & you'll be good looking" - Overheard in a Windhelm tavern