Thanks, everyone!
Angie, I think pretty much all knitwear pills. How much is dependent upon a lot of things, the #1 cause in my experience is always how soft the item is. Softer knits = more pilling. For example, cashmere almost always pills. A denser knit (so, tighter stitches) or yarn that is more tightly twisted when it's spun helps combat it somewhat. (Both of these things increase the weight of the garment, so you'd use more yarn/fiber by weight, which is why cheap cashmere tends to pill more, because they want to minimize the amount of yarn used.) You just have to accept it.
This particular sweater doesn't pill too much and only produces little tiny pills, but it's also not soft. It's not itchy, but feels very much like a woolen sweater rather than a bunny-soft one, if you know what I mean.
It honestly doesn't bother me much. I remove big ones and use a sweater shaver on occasion but I'm really not that fussed by a bit of pilling.
Of course there are certain yarns that will pill almost immediately (like, AS you're knitting it) and I try to avoid using those. There is a point beyond which you can't ignore it, lol.