I have learned the following from crew on 91:
1. With the return of traditional dining, the dining car is now a dining car and not a sleeper lounge. Sleeper passengers will no longer be able to hang out.
2. More passengers prefer to eat in their rooms than in the dining car (thus fewer tips for the LSA even though Amtrak reports a percentage of sales to the IRS)
3. New passengers do not tip at all.
4. The wine, that was previously served in a mini bottle, is now poured into a real glass.
My dinner was excellent. The LSA was someone I have known for years.