Gold is way better investment. Gold can be used to make jewelries and other stuffs and you can show off but can't do much with bitcoins. If the matter is of price rise, both need patience. We can't predict how will prices vary in future.
bitcoin technology can be used too for something useful besides being an asset and nothing else as may you think, for example it is possible to build many infrastructure on the top of the blochchain, like sidechains that could be used in certain business to speed up the confirmation if they need it, or you can build something like etherium, everything that could make better the virtual world could be build there and enhanced
so no, bitcoin isn't just a thing to trade and nothing else, it's the instrument of a great technology that will be valued more in the future and used everywhere for something useful