I peaked in Internet shopping around 2010 when Prime was, you know, good. Since then I have vastly preferred going in person.
Clothes? You can try them on. Electronics? Won't set your house on fire. Food? It's fresh and I get it today.
If you told me in the aughts that Newegg would be a ghost town and that I'd prefer going to Best Buy, I'd've called you a troglodyte moron, but today that's exactly how it is.
These are all anecdotes but I can't possibly be alone in these feelings. 15% sounds about right to me. I order online when I must.. otherwise, I drive to the store.