investing money in altcoin is the most profitable way to earn money I know this. but only investing in ICO, don't invest your coins to an altcoin which don't have proper road map and planing for future. lots of altcoin are also scam like other forms. so everyone should be careful.
i think he want to suggest to trading for btc - altcoin like other people trading. with 3 btc is more than enough to start trading and its should be easy to get big profit in trading. but for ICO, there are many new coins that offering different to get profit with them so i think its another option for the OP to choose. its up to the OP.
You need to be very careful in altcoin trading as there are many coins which can simply disappear with an blink of an eye which may allow you to loose all your money in a single day.
Yes! You're right some of the altcoin disappear like a bubble . So if you go to trading then you should do some extra careful with the altcoins 3btc is pretty big amount but if i were you just to play safe you should store your bitcoin in your wallet then wait until the bitcoin price goes up that is the best choice for me
Yeah saving it for future is the right thing to do but I think we can afford to take risk to increase our coins with trading as more coins will result in higher profits.