Ok so I was too lazy to work the math on the amount of L$ needed to make a real profit. 
My point, which you obviously understood, was that the amount of time effort and money needed to make a real profit just isn't worth it when you're talking about an exchange rate like this. Not to mention the fact that there is always that risk (remote as it may be) that SL will shut down (Don't grab your pitchforks! I'm saying its NOT LIKELY) and we would lose everything. Just like the RL stock market if it crashes.
I seriously doubt that L$ will go 'out of circulation' though. Why would it and how in the world would it be replaced? It just doesn't make sense.
My point, which you obviously understood, was that the amount of time effort and money needed to make a real profit just isn't worth it when you're talking about an exchange rate like this. Not to mention the fact that there is always that risk (remote as it may be) that SL will shut down (Don't grab your pitchforks! I'm saying its NOT LIKELY) and we would lose everything. Just like the RL stock market if it crashes.I seriously doubt that L$ will go 'out of circulation' though. Why would it and how in the world would it be replaced? It just doesn't make sense.
My point was that the approach I suggested would take most of the L$ out of circulation.
Nobody but you would have much after the big buy at the end of the process. So you could then proceed to sell it as if it were a rare gem, becuase to everyone else, it would be.The question is, would the appearance of rarity last long enough to close enough of this market cornering position to show a profit.