So, I remember in GTA4 they had a few gyms where your character could go and get pumped up. Would you like to see something like this WoW? Your character could do different fitness routines at set times even if you're not logged on. You could go for a massively sized muscle head, or a slimmed down aerobic instructor type of look. You could also do Pilates or whatever floats your boat. Steroids would be added to the alchemy profession, which would be a great boost to that professions profitability. Tailors could make cute little fitness outfits, and Zubaz pants and muscle shirts for the roidheads. Blacksmithing could make dumbbells and stuff. Engineers could make elliptical machines and treadmills and what have you. Cooks could make protein bars and fitness inspired dishes. Leatherworkers could make lifting belts with sockets for the new 'leetsauce' gems that jewel crafters will be able to cut. Herbalists could gather ingredients for making steroids and other fitness consumables that are not FDA approved.
Any thoughts on this idea? Feel free to add anything.