In times of doubt, join our club, could well be the message from Walmart as it plans expansion of its Sam’s Club stores amid increasing competition with Costco and BJ's.

Costco often seems like a company jogging slowly because it understands how long the race is. Competitors make bold moves, expand quickly, have a moment, and then disappear. While that happens, the leading warehouse club adds 15-25 or so new locations each year while tweaking its operations and merchandise.

In a bid to stay competitive with Costco and BJ’s Wholesale Club’s ambitious expansion plans, Sam's Club will ramp up its own plans.