Rule number one of trading. If something has happened, it already happened, no need to jump to the bandwagon. I mean if amazong is already down, why do you think it is right time to short it NOW instead of a month ago? I think since its already down I think from now on buying longs are much more reasonable approach to it. Not the options tho, options are very quick to liquidate if they do not go the way you think it will.
I think buying amazong stock right now and assuming it does not exist for you for another while would be a better option. I think it will be a great time to get into this "dot com bubble 2.0" right now, considering the big companies usually stay and go up insanely than you will profit in the long term. Maybe it will take 5 years for you to have a lot of money, maybe it will be 20 years, no matter how long it takes you will still be rich over time.