No,it is not good to buy other coins for bitcoin,if you really like bitcoin then you should buy bitcoin for now because we are still in the early days the prices will reach more high when compared to current price.So buy bitcoin how much you can because you can even buy small portion of bitcoin when the prices were around $7000.And one more don't buy bitcoin when the prices keeps increasing just buy it before the prices going to increase then only you can make money.
I think everyone loves bitcoin and believes in the future of bitcoin. but that does not mean they have to invest only in bitcoin.
even though the potential benefits are large? diversify investment is also important to minimize risks and also provide greater benefits
I have many plans for my future for which I need big money and for big profit bitcoin is necessary because I think that no other crypto can give me such huge profits in short time. I want to buy a big house for my family, a luxury car and also want to start my own small business and small coins will take long time to go up and give me huge profits. Therefore my choice is only bitcoin.