I do both most of the time, But prefer trading Bitcoin rather than simply gambling it, considering that trading isn't necessarily a negative house edge game unlike gambling and you can improve the possibilities of profit if you make good enough choices.
Gambling cant really be consider as an alternative on making money for longer periods unlike on trading which we can eventually make our own ways to enhance our skills and to be profitable on long term. Trading do have its own place and gambling too they do have different purpose and gambling is just really good for past time.