save on monero or whatever coin you believe.
gold and silver is just not worth it except if you have like a million dollar.
Investing in some trusted cryptocurrencies is always a good choice but to claim investing in silver and gold is not worth it is and exaggeration, precious metals are a good investment if you don't believe the currency economic system is going to keep going strong.
My planning for collecting coins, it should be byteball, check my signature and the Ann thread :
https://bitcointalk.org/index.php?topic=1608859.0 it has good idea of cryptocurrency, different but better I think. The value keep increasing and many traders looking for it, just check on Altcoins sections. Although, the distribution could be free for those who want to, just read the way how to get it.