Dine or Spine
Location
Required Items
Rewards
What the allowance actually buys
One allowance here buys 577,981 EXP, which places it 3rd of the 3 Lv 50 Fisher fieldcraft leves that record EXP. The best of them, Please Halone, Tell Me I'm Still Asleep, returns 963,302 EXP for the same allowance, 67% more.
On whether to wait: the best Lv 52 Fisher fieldcraft leve returns 1,001,778 EXP per allowance, 4% more than the best on this rung, while the Lv 45 rung behind tops out at 916,282 EXP.
At Lv 50 this data holds 54 leves paying EXP across 3 categories: the 3 Fieldcraft ones average 834,862 EXP per allowance, the 24 Tradecraft ones 238,216 EXP and the 27 Grand Company ones 132,961 EXP, which puts this leve 31% below its own category's average.
Nothing on the turn-in list is craftable in this data: Lake Urchin ×3 has no recipe here, so 3 units must come from gathering, a vendor or a drop.
The record carries a repeats value of 2. This site reads that as 2 further turn-ins on the same leve — an assumption, because the source data defines no meaning for the field — which would put the ceiling at 1,733,943 EXP and 975 gil for the 1 allowance it costs, or 1,733,943 EXP per allowance.