Should You Invest $1,000 in Costco Stock in October?

Costco is a high-quality business with durable demand, massive scale, and consistent earnings growth of 14.7% annually over the past decade. However, the author recommends patience rather than immediate investment, citing a steep price-to-earnings ratio of 44.3, despite shares trading 16% below their peak. The stock is suitable for quality-focused investors but not a screaming buy at current valuations.