That and laggy keystrokes are really a productivity killer, but maybe for some people it's a worthwhile tradeoff. Not for me. I'm of the opinion that tools should get out of the way and be almost invisible.
Interestingly thats what intellij is for me. RAM is cheap, give a bit more to the editor and it will not get in the way. Indexing saves me so much time that it payed for the extra GBs the first week of use.
