The past couple of years, and my upcoming travel this summer, our Amtrak travel was points redemptions so, no earning that way even though I am Select Plus and my wife is Select. It's likely we will drop a tier next year. Our trips are always sleeper or business depending on train so, we've got lounge access anyway.The only remaining reason for getting Select Plus is to get the additional AGR points. It is not really worth doing anything special to get it. If one reaches it in normal course of things. If not c'est la vie.
Also turns out, now that I don;t go to Penn Station that often, and half the time when I do it is by Sleeper, I really don't have an opportunity to exercise my Lounge rights as much as I did before. Similarly when I am in Chicago I am either doing Sleeper or Business Class. Don;t do METRA much.
The vast majority of our points earnings are via the credit card so "status" doesn't change our earnings that much. It's likely next year's travel will be paid.
Its a cycle: one year we earn points, the next we spend them!