Hello Charles,
Are you familar with the LA fashion district? Rent here is $10,000 a month for brick and mortar wholesale stores. With just few store workers and design staff, you need to sell over $1,000 a day to pay the bills. Several B2B websites emerged as an extention of the wholesale market here for international and out of state buyers who don't fly here every month. We sell per-packs of 6 pcs 2S-2M-2L for each color. At $15 per garment (I personally sell blouses and dresses, not so much $ 6 T-shirts). that's $90 per pre-pack for one color. If one store buys 2 styles, 2 colorway each , that's already $ 360. What seems to be so far fecthed? The challenge is to add new designs constantly because serious retailers can order more than twice a month and demand new styles all the time. The business is there, but to stay competitive in our local market here the investment in product development and carrying inventory is also high.