1) Add camps that give less XP than Colibri but drop better loot.
Like an item every 100 kills worth a decent bit, or something extremely rare (like less than .1% chance of dropping) which most everyone can use, like a new grip.
2) Add camps which give less XP than Colibri but you get gil per kill, about 250 or so. Chain 100 would mean 25k in your pocket, enough to pay for any expenses incurred. They could raise the price to even more and people could earn money and XP at the same time; albeit doing both less efficiently than they could if they focused on just 1 thing.
To do this they could simply create a mob almost exactly like colibri, make them drop gil, and put them in the past. No Sanction XP bonus, but drops money. Tada.
3) Simply add camps with similar XP/hour to colibri, but require better strategy. I'd go there simply to avoid overcrowding and unpleasantness, especially if it was more fun than the mindless grind at Colibri.
To do this, they should simply add a mob type with a nice built in XP bonus. There are mobs in sea that have like a 15% xp bonus built in (the ghrahs for one I believe), just knock it up to 50% and give them a large amount of HP, make them take double damage from magic bursts, and BLM is fixed.
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