When I take a break from WoW I usually go back to other games that I have been neglecting. My last break had me painting Warhammer 40k minis and building terrain for table top wargaming. Then when I got tired of painting and building I go back to WoW.

You could try taking up golf, that is what I plan to do for my next break from WoW. Golf is almost as expensive as warhammer 40k though but you get a lot more exercise if you *walk* the course.