Advantage of investing bitcoin are; Highly Liquid in comparison to other cryptocurrencies, Greater volume, so chances of fraud are less, May provide Higher returns, Acceptable by many countries for payment purpose, Traded on thousands of sites, Transferable, It can be called as the deciding factor of the cryptocurrency market i.e. If Bitcoin falls, The entire crypto market falls & Vice Versa.
Some of the disadvantages are : Highly volatile and end up into a loss of all your investment, Affected by political and government policies, Affected by international market including forex market, Instances have been seen, where bitcoin has been used for the purpose of money laundering & illegal activities including terrorism.
In the end, I would conclude that Its the beginning of the new era and One who is a bull investor and have a postitive attribute towards it should definitely invest in it for long term to reap greater returns.
There are many advantages of bitcoin like. High profitable, safe investment, easily acceptable in many big companies of the world. Easy transfer, and of course the deciding factor of crypto world. I dont think that there is any big disadvantage of bitcoin because if it has many disadvantages then why more and more people were investing in bitcoin. Long run can be count as disadvantage.
No wonder why many investors choose bitcoin over other cryptocurrencies, because they know its potential, they are aware how valuable, and profitable it is. I think the disadvantages of bitcoin that can be considered would be its excessive volatility, limited scaling, and increased regulation that causes the price to change rapidly. I strongly believe that we should be responsible in what we are dealing with, as part of Bitcoin community, it is our role to keep security as a priority, and to keep learning investment ideas.