<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by ozstamps:
If Amtrak needs to buy the UA miles ... what do they get from CO as that part of the deal? </font>
Whoever is being relieved of a future obligation pays.
CO --> Amtrak, CO pays Amtrak
Amtrak --> UA, Amtrak pays UA
Since Amtrak pays when it transfers out, you can see why they'd limit it. OTOH, you'd think the limits could be higher, like 100K. Otherwise, you have to question the math.