Ninjago really needs good army builder sets like Star Wars has

It may be from the sheer amount of enemies we see in the show, but I think Ninjago would benefit from Army Builder packs. Aside from the Oni accessory pack, most 'army builder packs' just give you some of the Ninja. So while you could make an army of ninja to battle your army of bad guys, It's so much cooler to have one big ninja set facing off against an army of bad guys. I think little army builder sets would sell like hot cakes for younger fans who don't have the ability to spend as much...