Why should you buy a Python?
You probably shouldn't unless you just want a Python. I can't say I think they're a LOT better than other revolvers, but nothing else will scratch that itch, if you have the itch.
I've had that itch for years. I wanted a Python "back in the day" when I didn't know dog poop from shoe polish. I just knew that Python was the prettiest thing I'd ever seen that didn't have red hair. But even then a Python cost about twice as much as a Smith & Wesson Model 19. I bought a 19. Later I bought Ruger Speed/Security-Sixs. I was perfectly happy with both. All good guns.
But they weren't a Python.
I finally bought one about a month ago. Is it any better? I couldn't tell you. I know it shoots just fine. But so did the Smith & Wessons, the Rugers, shoot, even the Taurus revolvers I've had over the years have shot just fine.
I didn't buy a Python for any practical reason. I bought one because I wanted one.
For God so loved the world, that He gave His only begotten Son, that whoever believes in Him should not perish, but have everlasting life.
John 3:16 (NKJV)