Difficulty vs Enjoyment, same thing or different concepts?

These events are becoming tiresome. They are about having the right toons already geared, leveled and maxed out. Clearly the rewards do not warrant investing into certain toons to beat one event. I am pay to play and find myself continuously frustrated in the amount of money it takes to get toons for just these events. There is less and less strategy being utilized and more cash dump. And not worth rewards and time.