To be honest I feel our prices are already pretty darn cheap compared to the product and support we offer. We've toyed around with the notion of various ideas, monthly subscriptions, bulk packages and just never really liked any of the options. We do however offer automatic discounts once you reach 3 style licenses which give you 25% off your cart with no coupon code. 6+ licenses give 30% off your entire cart with no code.
No plans to sell all the styles as a single bundle or subscription at this point in time.