As a previous posted mentioned, I feel it is a personal choice. If the parades are your priority and it works for your touring plans and style, then I say yes, use your FP+ on parades or fireworks. Also, it does depend on the situation. If you are going during a low crowd time then you might not need it, but if it's a high crowd time and you don't want to wait an hour for a parade then by all means do it. For me, I have not used FP+ picks on parades and fireworks because we have other attractions that are top priority, but for my next trip I night change that....we have never seen Illuminations. The last few trips we have tried but for something always comes up and our plans end up changing and we just cant make it. So, for our next trip, I may use a FP+ for Illuminations so we can ensure that we will see it and see it in a good location and not have to line up at the railing an hour early. To others, that may seem like a waste, but for my family, that may be a priority, so in the end everyone is happy: my family is happy because we get to see Illuminations hassel free and others are happy because that makes one less family getting FP's for Soarin' or Test Track. Win Win