Is Theme park preferred parking worth it?

Legoland, Universal Studios Florida, and Disney World offer “preferred parking”. It seems like a needless expense, but it depends on how long you stay in the park and how stubborn you are. I like to stay all day at a park because I refuse to waste money on those park tickets. However, I’m too frugal for parking upgrades. I’m remorseful on my way out of the park when I have to walk those extra 5 miles to my vehicle. I'm not a fan of waiting on the parking lot tram and the extra 10 minutes it takes for the "final" boarding call as people climb on top of the tram like it's an escape from a war zone. The real war zone is free bus transportation.