If you hold less than 1.5/2 BTC , do not buy a ledger wallet or others stuffs like that.
I don't understand this advice. A ledger costs less than $100. I would say if you are holding even a few thousand dollars worth of Bitcoin, especially long-term, then a ledger or other hardware wallet is a good investment.
I agree. If you are holding a few thousands of USD worths Bitcoin, it totally worth to buy one. I would get one to myself as soon as I get half of a Bitcoin.