Brick & Mortar businesses' response has been to cut back selection. Just TRY to find good precision screwdrivers locally, for example. Sears, Home Depot, Lowes, smaller hardware chains, etc - no dice. Frys has some decent sets but they're not here in the northeast so they aren't an option.
Appliances such as mixer stands - you'll find 5qt and under KitchenAid mixers with the weak motor and plastic gear case at many stores, but most don't stock the 6qt and larger models with the stronger motor and transmission with metal gears. Soo. I'm going to Amazon for that.
Monitors - Worst Buy is the only local authorized reseller for the ROG Swift monitor but no stores I've been to stock it. I went to Amazon for those. I'll be buying another through Amazon. Why do the Worst Buy "ship to store" for free shipping when I have to go pick it up, whereas ordering from Amazon gets me free shipping to my door, with better customer service?
Klipsch speakers - I can't get the Reference Series at local authorized retailers, even at the "Mangolia" outlets at Best Buy. They stock plenty of the Synergy line (which isn't bad, but isn't great), so again, I've been turning to online retailers for Reference-series speakers.
That's just a small handful of examples but I could list so many more. I try to shop local, but when the stores stick to carrying low-end crap I'm forced to shop online. It seems like retailers only want to sell low-end items that need replacing after six months to a year rather than higher end product lines that actually last.