I saw one in a Best Buy. I tried to check it out, but it needed to be reflashed (I don't remember what was wrong with it, it was months ago). I was there to buy a phone, and they might have made a sale, but someone dropped the ball.
For me it's the price. I feel okay spending 2.5k on a gaming PC or a mountain bike. But a smartphone for over $500 is just excessive for my usage. As long as the camera is good enough, I don't really care.
I would really like to own a foldable phone, but not at the current prices.
Granted, feels more like a tech-demo than an actual product.