Yeah, it’s very much YMMV. I got a Prius for ~$10k w/ <60K miles about 10 years ago, and new models were going for >2x that (I think MSRP was ~$25k). It now has 145k miles and has needed practically no repairs (maybe $2k?). So at the time, used was absolutely a better deal.
Today, a similar car would go for >$20k, and MSRP is similar ($28k-ish). So today, buying new is absolutely a better deal, if I can get it for MSRP (pretty big if these days).
So if I can get more than half of the useful life for significantly less than half of MSRP, used makes a ton of sense. But that’s not really a thing today. Had I bought new when I bought my car, I could probably get $20k+ for it today. I didn’t, so I can only really get $5k or so, but that’s still a great deal given that I put on nearly 100k miles over ~10 years.
I plan to drive my car until it dies, so I’m basically saving $15k or so buying used. If I bought today though, I’d buy new because used doesn’t make financial sense to me.