That sounds like a fair price for the Python.
I recently sold a 95% blued 6" Python for $750 and about $40 worth of trinkets and beads. Here is my experience :
You will see a lot of people asking outrageous prices for Pythons. Why ? Because they have read all the hype on the forums about how Pythons are worth a small fortune. Who put the hype out there ? PYTHON OWNERS!!
When I was selling mine I got a ton of comments about what a steal it was and how they are worth $1,000+ blah, blah, blah. But everybody had just bought a gun and had no money. I've got a saying "Money talks and B.S. walks". And when somebody has an opinion on the worth of something but aren't pulling out their wallet, then that opinion is worth just what you paid for it.
So, if you like the gun, buy it. I don't think the prices are going to go down. I also don't think it's a raging steal but it's a fair price.
But I'll be honest with you. Pythons are picky compared to a Smith or Ruger. They are a beautiful gun but more prone to get out of timing and such.
But that's just my opinion and it's worth just what you paid for it.