The payment a surviving crawler receives on release from indenture - bare subsistence at the low end, double at thirty seasons, and no housing guaranteed.
The compensation attached to the deals read out at the Outreach Guild. Low Floor Undead carries a subsistence stipend upon release, with no guaranteed housing - which the attorney claims is not as scary as it sounds, because former crawlers always find a place to live. 'Almost always.' City Attendant for the Hunting Grounds pays double stipend for its thirty seasons. Game Guide is pitched differently again: not on stipend but on the most potential wealth upon exit, which is the reason Porthus chooses it.
It is the crawl's severance package, and the scale of it - subsistence, with housing left to luck - is the clearest statement of what the galaxy thinks it owes the people it harvested.
The economic terms of indenture; the number that makes each exit deal better or worse than the next.