Stocking from Faire is fine to test what sells. But you are running someone else's brand at a 50 percent margin, and the boutique next door can stock the exact same product. Here is the graduation math.
On Faire you buy at keystone, about half of retail, so a $39.90 item leaves you around $20. Your own label, factory-direct, can cost around $14 for the same product, which is roughly a 65 percent margin, and nobody else in your zip code can stock it.
Margin here is (price minus cost) divided by price. Faire opening orders start around $200; private label typically starts near 100 units per style. The trade-off is commitment for margin plus exclusivity.
Faire is low commitment and low margin. Own label is a real order and real margin, plus you are the only shop in your area with it. Same shelf, same customer, more points, plus exclusivity. Use Faire to find winners, then graduate the winners.