It's a bit like: You want to eat cake. What's faster: Bake your own, or go out buy some.
Of course buying is faster, just like Plevel. But baking ( i.e farming on your own ) gives you a "special" feeling of satisfaction.
My advice: Try farming on your own at bandit if you've never tried so. Maybe 5k or 10k. When you're reallllyyyyy fed up with it, go for powerfarming. THEN, you'll start to treasure EACH SP you've earned, and not waste them
