I think we've all experienced the let down when a ride is down for refurbishment. I know I have! But in the end you may enjoy it more. It's just not the same anymore. You can't hear the narration because it's all scratchy. Even if it were perfect, you wouldn't be able to hear it because of all the squeaking, clanking and clunking that goes on from the vehicles and the track.
Even the Mansion going down this summer - as much as I'd miss it if I were going, I'd prefer to miss it once and have it working beautifully the next time than to ride it in the sad state it's in now. Same issues over at Spaceship Earth are happening at the Haunted Mansion too.