I've never really had any problem, though. I think I've only reset my cache twice since the option became available, and Home loads at the start and every space very fast (2-4 minute start-up). I'm not saying anyone's wrong, it's just that I (luckily) never had any of those issues (yet). And the way I see it, considering how many different spaces I go to, I personally would take a slightly longer load and reset/repair time instead of having to redownload everything any time a cool new space comes out, or having to cut a space out for a while.
"I don't know about you, but I intend to write a strongly worded letter to the White Star Line about all of this."