Correct me if I'm wrong, and move me if this is the wrong board, but in my opinion we should not focus on how to make Bitcoin do everything. Right now Bitcoin works well as a store of value, digital gold if you will. A $1 transaction fee means nothing to a $1,000,000 transaction. It does however severely cripple smaller payments, something that a cryptocurrency could be very good at.
Now it is my understanding that the point of SegWit/BU is to allow Bitcoin to be used for smaller payments by bringing that transaction fee down. Instead of making Bitcoin the jack of all trades, why not have multiple cryptocurrencies that each excel in their own areas? Leave Bitcoin exactly as is, and invest money and time into establishing a micropayment currency, a smart contract currency, etc...
Just some food for though.
Johnny
tl;dr
Why try and make Bitcoin do everything instead of having an ecosystem of specialized currencies?
I guess you are mistaken. There are many other crypto currencies but they are not as good as bitcoin.
And moreover bitcoin is the number one crypto currency so other people do not look upon other currencies as such.
Also some people invest in other crypto currency thinking that they will also become as famous as bitcoin and the people can make profit that way.