If you just want and think to get rich because you see the low price of Bitcoin Cash and the chance to acquire more coins without using it in any way then you might as well not support it at all.
The only thing that makes Bitcoin Cash different from all the other thousands of crypto currencies is it's highly likly prospects of being used as a global currency.
If you don't support or appreciate that, you just make Bitcoin Cash the same thing as every other crypto currency already available and render it's purpose and prospects useless.