I've been thinking a lot about these issues since December, when my go-to store for over thirty-five years closed. Let me say that I completely understand those passionate folks who are "hobbyists," frequently buying/selling/trading equipment. For them, I think that buying online without a test drive makes sense; as long as they can be relatively confident of the resale value, it sounds like great fun to bring things into your listening space for a month or two, get the feel of it. That's not me, at least not yet; when I buy a pair of speakers or an amplifier, I'm in it for the long haul.
And I would never spend $5k-$10k on a pair of speakers that I hadn't auditioned. Honestly, that seems nuts to me. Research can get me close but there are so many subtle differences even from the same company that it's impossible to simply read/research and know. Take, for example, the many threads that compare Harbeth to Spendors, or that compare speakers within the Harbeth line.
Of course it's possible to spend five figures online on a set of speakers and love them. Most speakers at that price point should sound pretty darn good. But you'll never really know how much of your pleasure is simply your desire to like something you have put your heart and faith into, and there's no way to know how those speakers might compare to the other speakers you didn't buy--unless you want to spend months buying/returning. How many speakers, just within the Harbeth line (for example), can you listen to that way? And what about speakers that weigh 75lbs or more--not so easy to set up and ship back. I'm not knocking anyone who buys online; I just don't think it's as good as being able to go to a store and listen.
(The argument that we save money online is questionable. Sometimes yes, sometimes no--but the real issue is whether online sales help or hurt the audiophile market. Most mid to high end equipment that is currently sold both online and in person costs roughly the same. It may be that a company that is only online can sell their stuff for less without the dealer mark-up, but that's speculation. To use the big example out here, do we really know what Tekton speakers would cost from a dealer? And dealers provide a service, so it's reasonable to pay for that. I've found many dealers are ready to discount, especially with established customers.)
I didn't take the OP's post to be aggressive. I thought he was simply asking, as he did in his recent post: what is the alternative to BOTH online sales and brick and mortar stores? That's a good question. Audio shows are part of an answer. I auditioned a pair of high-end speakers through a dealer who had everything set up at his house. There wasn't as much selection, of course, but there also wasn't any rush. I made an appointment and we spent a few hours, talking about room treatments as well as speakers and music. Maybe we get used to having 5-10 stores, located mostly in big cities, and they carry a wider variety. I know that manufacturers might not want their speakers competing with lots of other brands, but it might help us. Imagine being able to compare Harbeth, Spendors, KEF, Wilson Benesch, B&W ... all at once?
I love reading and researching, and I appreciate being able to buy online. I bought my DAC, streamer, and cables that way. And no doubt it's easy to buy really good speakers online. Finding that "magic," finding the sound that makes *your* ears happy, though, requires a lot of listening, and no amount of research can do that for you.