Asking in a forum that is all about bitcoin of course people will answer, you shoukd invest, not on gold but on bitcoin. But that will solely depend on how you manage your money. If you are in constant check of prices of bitcoin and any other currency, then investing is well-suited for you. Investing does not mean putting money and then leaving it to grow, you need to be aware of all the things that has connection on to what you have invested in.
Not actually as your thoughts, in a bitcoin forum, people are having good knowledges to point which is the advantages and disadvantages when you're investing in bitcoin to consider. Not bitcoin forum means 100% investing in Bitcoin.