you can buy them directly at the price they are currently at ($400) and sell them when/if they rise (just like a stock) or you can "mine" them.
You can use a regular PC to mine them but you are literally mining tenths/hundredths of a thousand per hour/day. You can buy specialized hardware that mines them faster, but you'll be investing $100s or $1000s. All "mining" bitcoins is doing, is adding transaction records to their public ledger from past transactions, thereby supposedly securing the bitcoin network if it were to be hacked. This requires the computer completing a shitload of calculations constantly, and the specialized mining PCs / hardware are much faster at these calulations than a normal PC, thereby earning them faster. That's the jist of it as I understand anyway.
https://www.weusecoins.com/en/mining-guide/
There's also casino type website where you can gamble them.
Monday marks the seven-year anniversary of Bitcoin Pizza Day – the moment a programmer named Laszlo Hanyecz spent 10,000 bitcoin on two Papa John's pizzas.
More important than the episode being widely recognized as the first transaction using the cryptocurrency is what it tells us about the bitcoin rally that saw it break through the $2,100 mark on Monday.
Bitcoin (Exchange: BTC=-USS) was trading as high as $2,185.89 in the early hours of Monday morning, hitting a fresh record high, after first powering through the $2,000 barrier over the weekend, according to CoinDesk data.
If you bought $100 of bitcoin when it first came out in 2010 and held onto it, you would have 75 million dollars today.
I have a friend who was right on the verge of investing, I remember him telling me about it right when it came out before I heard about it anywhere else, but he decided against it. He's on suicide watch today
Etherium
Check it out
Yes. Its value isn't so much as a currency but as what's being called "disruptive technology".
Enterprise Ethereum Alliance
https://entethalliance.org/members/
For the noobs, blockchain technology is like the invention of computers. Email. Internet. The latter prompted a 10-year bubble that made a lot of people rich and then reinflated when social media(internet 2.0) came around(facebook, twitter, snapchat). Bitcoin and mainly Ethereum are what's being called internet 3.0 and it's still in its infancy. If you're skeptical, good, but do yourself a favor and educate yourself. Look at the memberlist in that link I posted. Follow the ongoing news regarding its members and their work with blockchain tech. BBVA, BP, Samsung, JPM, Intel, Microsoft, and UBS are a few of the 500+ members.
The total market cap of crypto has grown from $10bil to $80bil in 6 months- and not even 10% of the population knows what the hell it is. Get in before it's Jim Cramer telling you to buy at the peak.