Disclaimer: I do not work for any company listed here or any electronics company for that matter.
Virtually all the electronics I have purchased over the past three years have been online purchases for at-home delivery. Some do in fact have B&M stores, but they are typically out of state or too far to be convenient.
I do most of my research online as well. If I need to see or listen to something, I'll find the closest store that has a decent setup. However, I have ultimately not purchased from those stores since online ordering provided too many advantages.
Details:
Pioneer receiver and Blu-ray player (Crutchfield; no tax in my state plus 60-day return capability made it a winner)
Apple TVs (online order from apple.com, but pickup at local Apple store)
Sony Pro camcorder (B&H)
Canon Pro DSLR, flashes, filters, etc. (B&H)
Cables and some non-electronic photography accessories if better price than B&H, (Amazon)
Computer and accessories (
apple.com with delivery to the home) old computer/monitor can thankfully be mailed back to them for recycling.
Having said that, when I next need TVs, I will most likely seek out a B&M. Mainly due to wanting them to do the install (I can no longer lift heavy weights) and haul away the old one.