Invest some of it, yeah. You have to realize how frigging volatile bitcoin is, though. There's nothing that says we have to stay at or break above $2500. We could be back down to $1500 or lower by tomorrow. Do I think that's going to happen? No, but it's possible. So if you're young and don't have a retirement plan and have extra money to play with, do it. But be ready to lose money...and hope you don't.
I wouldn't put too much into crypto.
I think it is not bad to invest some money in bitcoin. There is nothing impossible in bitcoin, because as we can see users, bitcoin has a lot of potentiality in the future so don't be worry and there is nothing afraid of with bitcoin.
Based on the current fact, there is nothing wrong or no issues with the bitcoin in terms of security as well in terms of growth. It's our responsibility to make it more secure with the possible security features. The growth taking place with bitcoin is very big which assures profit for the investment. So investing into bitcoin is the best one who expects profit.