Doing both is silly, Im more into getting one of it up and running . You should read some quotes from trump, diversification is really a bad idea. You wont know what you are investing if you dont go all in with your everything. On one sides, the quote is actually correct however unless you are very rich, you cant do that
Well, i also feel the same thing, if you don't have a lot of money then it is meanless to store your money that is a limited amount and has no much value, but it is better to invest it somewhere safe to keep it growing with the time, only the people who has more money then they recently need should store and save their money somewhere so that if they need them in future they can be able to use them.