This is the only answer that made sense to me.
The argument that the Spark-lite is part of a system and needs to be used with the special waterproof tinder makes no sense - it would be cheaper to just buy the special tinder and you could use your 99 cent BIC lighter to ignite it, even if the lighter is cracked and has lost all its fuel.
Likewise, the BIC lighter will generate a spark quite well at any altitude (short of outer space where the lack of oxygen will make building a fire problematic <img src="/images/graemlins/smile.gif" alt="" /> ) The fact that, under some conditions, it fails to provide the additional functionality we expect of it is a limitation on the Sparklite, not the BIC.
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"The mind is not a vessel to be filled but a fire to be kindled."
-Plutarch