As soon as we make contact, we will be able to trade our two starting techs (or maybe only one of them) for a technology from another civ. If we get lucky, and the first civ we meet has two different techs than we do, we may be able to get both if we throw in some gold. Particularly, if we can get alphabet through an early trade, I think we should. The AI will get both of our starting techs very quickly even if we don't trade them, so we should try to get what we can for them.