I would hardly call the sparkie a novelty, but you are right that most people aren't familiar with how to use such implements. I've had bics fail, and I know I am not the only one here who has. I've also had ferro rods break, so it pays to take care and have a backup or two handy, regardless what your primary source of firestarting may be.
Ideally, I prefer to carry several different types of firestarters, and also to know how to make fire using natural implements, like a fire bow and drill, collecting natrual flint/churt, or even converting other supplies/tools to making fire.
Every one of my kits has a good butane lighter in it. My favorite is a $9.00 catalytic torch type that is watertight, windproof, and refillable. However, I have a couple of those 99 cent bics, with duct tape spooled on them (they make great duct tape holders)
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)