Tulips were plants, not a technological breakthrough that has opened new opportunities and pathways for humanity to move postively forward into the future. But Tulips are beautiful. 
Bitcoin mania is totally different than Tulip mania or Dotcom mania. People can grow and harvest Tulip bulbs or create more and more Dotcom companies. However, they can not create more Bitcoin than 21M was created by satoshi nakamoto.They can fork Bitcoin and create Bitcoin ABCXYZ but they are forks, not original and real Bitcoin. Values of fork? You can check with How Many Bitcoin Forks Are There? You will be surprised!!!
Tulip Mania, ABSOLUTELY DIFFERENT. Dotcom Mania, OK maybe there are some similarities because they are the same that they are the breakthroughs of their times. But Bitcoin is the Amazon of the Dotcom Mania.