Everyone may have different opinions about why they like and embrace bitcoin. Bitcoin is profitable. There are lots of ways to earn from Bitcoin, a user may invest, trade and do mining to earn. Lots of people are earning huge profit from Bitcoin. Being decentralized is a plus point. It allows its users to use Bitcoin as they like.

There is no best time for buying or investing in bitcoin because it is very profitable. Bitcoin is the future digital currency. You can earn more money by investing and hold them in very long time. Maybe bitcoin is getting higher in price, no, undeniably bitcoin has skyrocketed and it may affect one's decision making especially those who are buying for the first time. It is also a good opportunity to buy since bitcoin is getting higher and trading will be easy.

Bitcoin is a good investment now, because the price of bitcoin has been more stable than ever before which has increased trust in the currency. In the last 1-5 years bitcoin has shown unprecedented stability as a financial instrument. 

Bitcoin is more of an asset than an currency. This is because initially when bitcoin was introduced the many people collected bitcoin maybe as a hobby or maybe for trading as the prices were very low. Some may have also keep those coins as an asset with the hope of increase in price and definitely may have profited today. So bitcoin is definitely an asset.

I don't think that may be a threat to the current physical currency as bitcoin is a digital currency and both a two different things. It might take atleast few more years for bitcoin to be recognized as an official currency as in many countries trading or even owning bitcoin is illegal. Bitcoin is the future of digital payment system where people may be able to purchase stuff online by using bitcoins.

Another way to buy Bitcoins anonymously with cash is to go to your nearest Bitcoin ATM and buy Bitcoins from the ATM using cash. Buying Bitcoins via an ATM is probably the best way to go about buying Bitcoins anonymously.

If you’re looking to buy Bitcoins anonymously then the easiest way would be to buy Bitcoins in cash and in person. Use Local Bitcoins to find someone who is willing to sell Bitcoins for cash next to your physical location. You can use an alias email address to sign up to Local Bitcoins and the verification id process they have is optional.

Since Bitcoin is decentralized and not governed by any one country, it’s not susceptible to major changes in valuation should a country do something that could make their money less valuable. Many people are using the cryptocurrency to keep their money safe from devaluation, or even to use it as they would paper money.

Bitcoin isn’t the only cryptocurrency around. New rules governing Litecoin make it faster and easier to exchange. Ethereum, another popular cryptocurrency, recently split into two different currencies, raising its profile and lowering its price of entry. As Bitcoin grew in popularity, so did all cryptocurrencies, which are cheaper than 1 BTC.

Thanks to apps and exchanges like Coinbase, cryptocurrencies are easier to buy now than ever before. These services also increase the profile of cryptocurrencies as viable, tradable assets.

Bitcoins cannot be stolen, Bitcoins’ ownership address can only be changed by the owner. No one can steal Bitcoins unless they have physical access to a user’s computer, and they send the bitcoins to their account.

No Risk of “Charge-backs”
Once Bitcoins are sent, the transaction cannot be reversed. Since the ownership address of Bitcoins will be changed to the new owner, once it is changed, it is impossible to revert. Since only the new owner has the associated private key, only he/she can change ownership of the coins. This ensures that there is no risk involved when receiving Bitcoins.

There are no transaction costs!!

Unless users publicize their wallet addresses publicly, no one can trace transactions back to them. No one, other than the wallet owners, will know how many Bitcoins they have

No Taxes!

There is no way for a third party to intercept transactions of Bitcoins, and therefore there is no viable way to implement a Bitcoin taxation system.

Since there are multiple redundant copies of the transactions database, no one can seize bitcoins.

If you have more bitcoins and want to keep it ultrasafe then go for Hardware wallets like TREZOR . or the cheapest Ledger Wallet.

You can keep your bitcoins on Windows / Android based software such as Copay, Mycelium Wallet etc.

If your amount is small and you are interested in Trading keep it in premium Hot Wallets (Online Wallets) like Coinbase , Blockchain , Xapo

Avoid keeping bitcoins in exchanges as they are more prone to cyber attack, put them in wallets.Different exchanges/wallets are CEX.IO , Coinbase , Coinmama , Whaleclub , Lake BTC , Bitit , VirWox , HitBTC, Changelly.