then it's a good idea to be the first who can build that business
but if there is an exchange exist already, i guess will be hard to compete with the experience one
future plan always about money , and with bitcoin you can achieve it, just buy and hold bitcoin as long as possible.
That's better to hold, but in reality if you make a planning and implement a part of the bitcoin you hold in some sort of business you'll earn more than the earning got of just holding. You should be sure that, at any instance should not get trapped into the hands of scams expecting big earning.