I don't think any technology will ever be adopted in a drastic switch, but I can definitely see it happening gradually. Consider some future cloud hosting provi

I don't think any technology will ever be adopted in a drastic switch, but I can definitely see it happening gradually. Consider some future cloud hosting provider that accepts payment in cryptocurrency (not necessarily Bitcoin) - someone building a SaaS product could charge customers in that currency, and take advantage of financial instruments that are much more difficult to implement with traditional banking (micropayments, smart contracts, etc).