It matters what you consider worth it and the risk tolerance you're ready to open yourself up to. If you're a trader that's spending 40 hours a week trading and is barely able to make a few hundred dollars, or you're losing money -- then, of course, it's not even close to worth it. But if you're able to spend less time (like drastically less) and make that money then so be it.

Time is money, and you could have another job with all of the time of a full time trader.