Question is, if you can use these 3-4 BTC for short-term investments. But for people who doesn't have time or knowledge, buy BTC is the best choice, I think.
It is generally a good option, but with the scaling news and the speculation that is going around,it is good to wait for some time before investing in it as news are coming out about a split in the network,so i would wait for some time before investing again.