To add on to this: the Avatar AddOn model also makes revenue shares fairer for everyone. It makes sure that the creator of the base, of the clothing and of the accessories and items each get paid their share.
It also makes the avatar more optimized (you can just load in the current outfit and unload any others, like it’s already done with different avatars) and it makes everything infinitely more customizable. Saw a cool jacket? Add it from the marketplace! Avatar missing GoGoLoco? Add it from the marketplace! Want one of Liindy’s or Pointless’s cool assets, easily and immediately? Add it from the marketplace!
(Just make sure that free items are also allowed on there. Please.)