It's been a nice run, but all good things must end.
I think that jebr is too optimistic about the future exchange rate. A five cents per point redemption rate won't work if you can buy points for less than that. Two cents per point seems more likely, or even lower. I think that we're looking at a major devaluation for sleeper redemptions, so I plan to use up my points under the old dispensation.
I imagine, though, that after I burn my points I will use Amtrak less. Late trains, increasingly decrepit Superliners, less choice in the dining car, inconsistent customer service (except for conductors, who are consistently rude), and now this devaluation make other modes of travel more tolerable to me. I'm sure that is fine with Amtrak. I've never been a particularly valuable customer.