I did the same. I bought a new MS250, regular version, and right off the bat I had so much trouble trying to start it, I took it back and swapped it for a 250 with the EasyStart.
The dealer went way beyond what I would have expected. Since the saw had been used only once, and hadn't run over ten minutes, he traded even up. He even refused to accept my offer to pay the $40 difference for the EasyStart. He said his salesman should have offered me that option to start with.
That's why it pays to go to a dealer instead of trying to save a few dollars at a box store.