Hey, do you think they could do some sort of package deal like a nice gift basket (actually, a gift gear bag) full of the necessary ninja gear and then maybe some nice special touches like chocolates? They could market as something like the "Ninja Assassin Gift Basket" and push sales around Valentines Day, Christmas, and other related family holidays.
Or, maybe there could be a club that you join and every month you get a new ninja accessory and they conveniently charge your credit card every month. In this way, the ninja wannabe could afford the whole package, but spread out over a couple of years.
Holy cow, the marketing possibilities are endless!!!!!!!