Frank Caggiano wrote:
If you bought SL DVD's to upgrade from Lion you can upgrade the system to SL after the Lion install is done if you want to sell it with SL on it.
I think he means to upgrade from Leopard, not from Lion (which would be a downgrade from Snow Leopard). Sometimes it's hard to keep those cat names straight!
Also note that if you bought a retail Snow Leopard installer disc & want to sell the MBP with Snow Leopard installed, you need to include that disc with the sale for licensing reasons.