yes altcoin is very convenient for investment because the cost is easy and can invest with small capital and easy to get profit with short and long term, bitcoin now very high fee and for the players of small capital will run out of funds to pay fee
Altcoin to me is even the next stock market but even in a bigger level. Anyone can take it or leave it.
As long as we are talking about the global market here and not just stocks that is restricted or real estate that may come with some governmental policies that can affect investment, altcoin market is new, and with the opportunities that are present, I do not even expect anyone to be asking such a question in the first place.
Maybe I should re-ask the question this way; Why invest in real estate and stock market, when you can just simply and easily invest in altcoin anywhere you are in the world ?