The idea of options in xp gain is nothing new to FFXI. Even in Aht Urghan, one can trade imperial standing points (earned during Besieged) for imperial currency. This would be a great way to enable players to trade experience points for other items. Only after lvl 75 can the Merit point system be used. It would make sense to offer lower level players some sort of option as well. Besides, it’s hard to cap skills with rapid xp gain, so having this trade-off would be better for that too.