Are they "worth" that much? I don't know. I suppose only you can answer that question. I paid MSRP + tax for each of mine. I wouldn't take that for them now.
Are they worth it? Not if all you want is "a" 357 Magnum revolver. There are plenty of 357's out there for less than what a new Python will run you. I'm not even going to try to tell you the Python will put rounds on the target any better than any of the others. I don't know if they will or not. I doubt I could tell either way.
BUT...if you want a Python, there is nothing else that will scratch that itch. I know. I've wanted one for about forty years, but didn't want to spend the money to get one, even back when Colt was making the original ones, and you could reasonably walk into a gun store and expect to find one on the shelf. I always settled for "just as good." But "just as good" was never quite a Python.
So when Colt bought back the Python, I didn't hesitate. I bought the first one I saw, a 6" one. The 6" one was nice, and I shot it a fair amount, but I still had my heart on a 4" (4.2 actually) one. So I watched Sportsman's Warehouse and once again, hit the "buy it" button the first time I saw one.
Haven't regretted it a bit. I've shot the 6" one, but due to the COVID rules at the local range, the 4" is still unfired outside the factory. I might try to fix that later this week.