Some people have a hard time learning new things, and it might take them twice the amount of time to understand a process, but once they do, they can turn their mind off and churn through large quantities of really mundane tasks. They can do this hour after hour, day after day, year after year.
Until a change comes along. Then they are thrown off.
Eventually, something big happens, this "routine oriented" person is asked to move into a management position, or worse, asked to use a computer. Technology changes, and they can't keep up.
Then there are others, those who never can get down a routine, but are quick learners. I'm one of them. I'm good in an environment that's always changing. I like to master stuff before I move onto the next thing, but change along the way doesn't bother me, in fact, I'd say I thrive in it.
One thing I've noticed is that I never get bored with driving. Actually, I get mentally worn out. I'm so involved that after driving for a few hours I need to watch tv or just stare into space because I've spent the last 5 hours watching for cops, preparing for turns, looking ahead at traffic patterns, and enjoying the new and different scenery. I think this is why I love the internet, it's always changing and I'm in control.
I don't get bored with my partner, I don't get bored with my house. I don't get bored with my friends or life in general but in a confined work environment I start to grow careless as routine sets in.
Beer is production, but you sound like more of a marketing or "tester" type. An environment where you can try new things, experiment, meet new people, be challenged in the variety, not in the routine.