Bitcoin will collapse just like tulip bubble collapsed. At the top some children used their inheritance to buy tulips and got totally burned. And tulip holders bought an amazing amount of hard assets right at the peak (not bank accounts) such as farmland, cattle, buildings, etc. This woke people up to the ridiculousness of it all.

It takes 7 years for a tulip to grow. This is akin to the limited supply of bitcoins at 21 million, but probably 6 million have been stolen, so there is only 15 million bitcoins.

When similar events happen the price of bitcoin will collapse to under 1% as tulips did. If it reaches a high of about $50,000, the equivalent price of a tulip at the peak and the income level of a tradesman, bitcoins will collapse down to $500, but $500 for a tulip bulb is still silly.