I have several, and I like having my options. The short stubby parer is what I pull out for hulling strawberries and coring stuff. The regular pointy-tip parer gets every-day use. My sheep's foot gets used more with peeling and light chopping, and my slightly longer carbon petty gets used with bigger fruits.
I've posted this set of parers before, and I still love the idea. I would love a maker to offer a set of 3 or 4 paring knives.