^ if you're talking about coinbase then you should be wiring money to their exchange (GDAX) and buying from there with limit buy orders. Costs $20 but if you are using it semi-regularly makes sense to wire and pay a flat fee for that instead of paying their card fee.
Blockchain is definitely the shiiiiiii!!!! It is only going to be adopted more as the use case for it multiplies in the future. Right now we have a limited number of use cases for it but we are also on the brink of major companies incorporating some of the more cutting edge blockchain technology (ie NOT bitcoin) in their supply lines, contractor relationships, transportation/importation records, etc.
The beautiful thing about it is that any particular chain can be immutable, meaning that once transactions are recorded they are impossible to be tampered with, without a record of that tampering (ie can massively reduce corruption and waste in a company).
Some ones to watch over the next few years imo as far as disruption/adoption: