Shoppers browse at Wayfair's first store in Chicago.Dominick Reuter/Business InsiderAmerica's post-pandemic shopping boom appears to be winding down.Consumers are feeling the pain of accumulated price increases and are pickier with what they splurge on.For retailers, that means the end of the everyone-is-a-winner environment, analysts told BI.America's wild, multi-year shopping spree has come to an end — and retailers who got used to Americans dropping cash on just about everything are in a tough spot.Companies are now grappling with the emergence of a more price-conscious consumer than they have seen in years.