Regarding the third point, for bitcoin to be an analog to gold we must keep in mind that gold is universally known and valued. If bitcoin prematurely choked off its own growth and abandoned efforts to mainstream it, I suspect it would slowly wither and die as competing altcoins rose to take its place as an everyday, mainstream cryptocurrency.
The current price of bitcoin is based largely on expectations of future growth. Choke off that growth and I suspect a large portion of its current valuation will evaporate.
As a bitcoin broker, my statistics showing that most of the people are attracted by bitcoin because it has strong anti-inflation tendency, not because of its payment function
Bitcoin does provide easy payment function, but for those people using web payment domestically and using credit card to do international shopping, bitcoin just bring more trouble than convenience (exchange at both ends and exchange rate risk). Bitcoin is just too late in the payment space. If bitcoin arrived before paypal, then it would have been used around the world by now. Unfortunately, today's payment market is almost fully occupied by credit cards. Being a little bit cheap is not enough convincing to persuade people to make the switch
Besides, there are thousands of alt-coins all providing similar payment function, but they all have little value, because value must be time tested. Once upon a time I even spent some time in litecoin mining and trading; just after one month of practice, I realized that it is a community full of scammers and speculators, almost no one is doing meaningful development. This is a good example of the importance of being time tested
Focusing on time tested anti-inflation property of bitcoin will make it into mainstream