Multiple successful low-cost copies demonstrate the barrier to entry is low, and in doing so, improve the efficiency of the market. Unsuccessful copies may dem

Multiple successful low-cost copies demonstrate the barrier to entry is low, and in doing so, improve the efficiency of the market. Unsuccessful copies may demonstrate that the barrier to entry is high (for whatever reason), and may in doing so still improve the efficiency of the market. Likewise, a failed clone may simply demonstrate the copying entity's inability to compete. Regardless, I don't see how attempts to copy (and improve?) are a bad thing for the market.