I don’t agree that their prices are somehow out of line.
The guy I’ve ended up working with is unfailingly patient and has never pressured me to buy anything. It’s a collaborative relationship, not a dictatorial or manipulative one. He’s let me keep cables longer than stated on the website.
Once, when he was on vacation, I talked to another guy who I did not like at all. I simply waited until my guy was back. Yes; at times he gets very busy and I may have to wait a couple days for a response or call back but I don’t mind this. No big deal.
If you want to go the buying used, trying and selling what you don’t like route, then clearly TCC is not for you. For me, selling gear is an unavoidable part of the hobby but not something I want to do any more than necessary. Nor do I want to deal with buying new cables and hoping they’ll burn in before it’s time to return them.
I find the opportunity to try several.cables from different manufacturers at a given price point from one source a very convenient and practical way to go.