For me it's a kind of gym where I get a workout. These are (usually) real-life problems which give me a chance to test my skills (if any).

The ones I like best are those that are at the limit of my capabilities - where I react with "I should know the answer to that!". Five minutes searching around perhaps fixes a problem and I've learned something - and Dave or Tamil will gently put me right if I stray (or pando will blast me out of the water, Jeff doesn't bother coz he only does ABW ).

P.S. agree about Meatlink