The worst of this was shipping costs. UPS and others started adding a line item of "Inflation" to their commercial customer's label prices. 

Credit card costs are (almost)always hidden to the consumer. 

Upstream parts MFGs simply cut margins for 3rd party sales, and some even re-opening their online stores to further drive 1st party sales. 

The only benefactor is the entity who takes a fixed percentage on the price... But we don't talk about that. Weird how taxes never seem to go down.