Good thread, found it really interesting!
I am processing some research on DICK's Sporting Goods, 750 stores and 90% are their core brand. I knew the reality was something along these lines but just didn't expect the % to be so small: "The Company's eCommerce sales penetration to total net sales has increased from 2.8% in fiscal 2010 to 10.3% in fiscal 2015."[1]
It's certainly growing every year for them, easy to see since it's a public company, but not at a tremendous rate like my news bubble or profession would have me believe. It furthers your point that brick & mortar are certainly not dead, or even dying, since many people still shop in-store.
Of note, a good portion of their 10k was devoted to omni-channel experience, which is the thinking that customers are customers and not defined by online or offline alone--they use both. Omni-channel strategies seem pretty basic at this point but also well worth their investment.
[1] https://www.sec.gov/Archives/edgar/data/1089063/000108906316...