This is pretty much how retail works. The other sellers made a mistake by dropping their price. It probably does not apply to this case but it is also a tactic used to drive your competition out of business. You drop your price until the competition can't make money then you raise it again after your competition is gone.
This may sound stupid to some but I like to pay fair price for my snakes especially if it is a "public" deal. I believe in keeping the small guy in business as long as he is not gouging. It is better for the hobby to keep the small guys breeding. If we do not, we will pay the price in the long run. Little guys almost always provide better service than the big ones. I also believe that the more competition there is, the better the quality of the product will be. Shutting the little guy down benefits no one in the long run. Walmart type business practices are bad for the economy. I will not shop there no matter what. They shut down an entire town in Texas.