Bought Bitcoin (BTC) at $1300usd in March of this year , it is now $4200usd.
My main play is in crypto currency, bought BLOCKNET AT $1.50 sold when it reached $30.00 last week - You do the math. I encourage everyone to get educated on Bitcoin guys, lots of money to be made here. Do your research and invest what you can afford to lose.
In the US, I use coinbase.com to purchase bitcoin with bank account and credit card.
Once you have btc in your wallet , you can the use it to buy other alt-coins/cryptocurrencies on the exchanges: bittrex.com , poloniex.com etc...
Crypto Currency site:
https://coinmarketcap.com/
I follow Tone Vays on YouTube. Check him out good source of information.
Good luck