Is Costco Overpriced?

Costco has one thing in common with Amazon, it is a very cash rich company. On February 28, 2017 it reported $4.976 billion in cash from operations, $2.384 billion in in net income and $5.965 billion in cash and short-term investments. This was in spite of a free cash flow of -$23 million and a profit margin of 1.73%.