The KMC M/L-11 6-pack can be had from a reputable Ebay seller for ~$29.00, which translates to < $4.85 a piece. This does soften the blow of them not being re-usable, but it may still tip the economic scales in favor of a less rigorous cleaning/lubing regimen. We'll see.

Trust me on this, I do respect "lazy". I keep the dis-assemble/ultrasonic clean/lube cycle as painless as possible by running 2 chains in rotation.

Ed,

Keep a close eye on the pin you pushed through. Even on a 9 speed chain, if you've pushed a re-used pin back through it's old side plate hole, it will not hold for very long. When it lets go, and it's "when", not "if", it could be very unpleasant for you and your bike. Like Penman said, "Ride safe".