For me, altcoin has many advantages, one advantage is it gives to the individual money to sustain the basic needs, It also reduce the increasing number of unemployed in some countries, The people who work in bitcoin develops the ability to reason out, enhanced the English proficiency, that's the some advantage of altcoin
The real advantage that I see in ALTCOIN is that it is cheap at its early stage because they introduce it to the public while they are really looking for an investor. You can also avail these altcoins free by joining to their bounties and airdrop. But you will have a great chance to somewhat get "rich" if these altcoins will really reach its peak price in the near future.