I'd always prefer buying and holding a lot of low-price coins. Why? Because if you buy something at 0.03-0.04 USD lets say, You dont have to spend a lot of money to get a lot coins and that's okay. Another plus is the price wont probably go down to 0.00 but will increase just because other people like me decided that the coin's price is low and it is worth buying. The chance to double/triple/etc your money is a bigger. A coin going from 0.04 to 0.08 can happen and is way more possible than Bitcoin going from 17k to 34k, isn't it? Of course all of this is just my opinion. Best wishes, Sveto.