Haha, me too, I never paid a cent and my super team has a decent win rate, with at least one trophy per season.
One of my greatest wins ever is on the spot formulating an intelligent strategy and formation to overcome a team with a deadly mutant striker with 350 finishing skill, by not giving him much chances to get the ball thus neutralising his obscenely high finishing attribute, and at the last gasp moment, my team defeated his and wins the finals of the King of Kings competition, the toughest competition in T11.