>so buy silver, and gold first, then use profits to buy XRP?
Is that a joke? When (if at all) you will see any substantial gains from pm's XRP will be above ath already. I don't hate pm's, i own half kilo of gold, but I didn't bought it to make profits.
It's not a scam, it's most convenient way to purchase xrp. If you want different route, buy XLM on goybase or whatever, send to bitrue and trade it for XRP, then send it to ledger, trezors (usb) or generate paper wallet.