I enjoy both of them, but for some reason Mission Space has never been a "must do" for me. Same with Soarin'. Or Nemo. And even Test Track doesn't thrill me anymore. Figment and UOE are fairly embarassing and need updates.
I think Future World could be so much more than it is. I know I'm likely alone in that, but it personally gives me very basically nothing to do, even though I like the attractions. None of them to me make me want to ride again and again. Soarin' could depending on the update they get. And believe it or not, I really like Epcot. So it's not that. I think the other three parks have much many more rides that lead you to want to constantly re-ride them. Spaceship Earth gives me that. Test Track used to but ehhh, it's very basic. Mission Space, I dunno, I think they could do better. It's probably time for an update with that one too.
It seems to me that they're in the situation where they should have been updating these rides over the last couple of years and now they're stuck with attractions that pretty much BEG for an update, so instead of spending money over the years, they now face the realization they need to pour a ton of money into them, so that's why I think things aren't getting done. Coupled with them probably not getting much money because it sounds like WDW as a whole is getting punished for the cost of MM+ (not saying we need to get into cost overruns, whether it's true or not but it seems to me that money is being withheld because of how much that cost, whether it went over it's budget or not).
