I think it is 3k well spent.
The enclosure is not perfect, actually if you look around the Haas lathe forum you will find a number of people quite dissatisfied with it, but I could not do without it. I have to admit I did some mods; I put some pictures in Post #13 in this thread:
http://www.cnczone.com/forums/showthread.php?t=44745 (HELP! My TL-2 Leaks coolant excessively)